Get weekly updates with the latest car news and reviews. Flat tyre? 6. 1 inch lift and 2 inch bigger diameter tyres (together). The diagram below shows the permissibile conversion from a 15" through to a 20" tyre. Ive spoken to insurance companies on the past, and told them of lift kits and bigger tyres on several vehicles, and they all say Sure, no worries, Ive added it to your list of modifications and you are covered. Pay for it later - in four equal instalments. Tires are manufactured with the tire size printed on the sidewall. Ensure tyres have adequate tread depth. In fact, the actual diameter of 8.25-16 is 865mm. Tire Deals/Promos Readers Rides Contact. you guest it its all about the weakest vehicle manufacturer in the group. I believe Vic can go 50mm bigger diameter on tyres and a 50mm suspension lift, so a 75mm lift overall, What about Tas? Also browse our tyre categories and deals pages for Jeep tyres, 4X4 tyres, cheap new tyres, all weather tyres, cheap truck tyres, all season tyres, and tyres with free shipping. It's NSW reg'd and passed rego inspection just two days ago. If you want to know how to measure tyre tread depth in Australia, you should pay close attention to the following: https://tyrepower.com.au/tyres/tyre-care. Let us know about your
Use this page to work out the radius, circumference and diameter of any size tyre. A very useful tyre calculator when searching for tyres that are a different size than stock. Heres a guideline to whats legal in the major states of Australia. The moment you change that, the engineering goes out the window. The overall diameter of 8.25-16 is 32.5, which is only 1.5 larger than the factory tyre. As one of Australias leading multibranded fuel cards, the Tyrepower Fleet Card gives you the power of so much more. For those of you out there that are running bigger than a 2 inch lift, your vehicle is illegal. You are using an out of date browser. Your brakes may fail if you go any higher. Find out about the rules, regulations and standards for constructing or modifying a vehicle in Western Australia, including modifications to heavy vehicles and vehicles for people with special needs. The 285 is actually 7mm too big. It may not display this or other websites correctly. I know this, as Ive been on it (cant remember the address) and I have spoken to engineers who have looked this information up in a matter of minutes. What are the shipping charges to my area? At the RTA (NSW) they said a 750R16 is the same diameter as a 235/85R16. The third number generally preceded by an "R" is the wheel diameter. Rim diameters cant exceed those specified by the manufacturer, although plus one and plus two wheels and tyres are allowed so long as the overall diameter of the large rims and fitted low profile tyres dont exceed the manufacturers diameter specification. The X-trail T31 2007 44 is rated MC. Anything below is considered unroadworthy. The maximum increase in combined wheel and tyre diameter allowed in Queensland is plus 15mm or minus 26mm. Overriding previous rules, the new paperwork states that overall tyre diameter can be increased by 7% before requiring an engineers certification: Replacement of tyres that change tyre overall diameter by more than 7% of the overall original diameter. If one of the tyre sizes marked on the placard (eg 215/65R17) matches the marking on the tyre sidewalls, certification is not required. Its something that can change your life very badly for a long, long time, and if you accept this risk then I honestly think you are foolish. You can find a list of engineers to speak to here. You can measure this, but yes, 50mm maximum in diameter increase, and width you can go as wide as you want, as long as its covered by flares. Surely the pits would just approve it all? Its not a huge difference between the two but the profile difference between 75% of the tread width and 70% can be enough of a difference to put your speedo out of whack too? Interest free. The wheel width has to be suitable If you want to know What is the legal lift kit height, make sure you also consider the tyre size change, as this is what usually catches people off guard. original equipment(OE) tyre, This post is referring to WA though. difference between general purpose and special purpose processor . When a tyre is brand new, it starts off with about 8mm of tread depth - measuring from the bottom surface of the tyre to the top of the tread. Fact is though, lots of 4WDs across Australia arent legal. If there are bulges and cuts, have the tyre examined, as the damage may be more serious than it appears. Im going to assume you dont have a 4WD? select OE tyre size. In NSW you are allowed to fit wheels that are up to 26mm wider than the manufacturer's specified wheels without needing . If so where can find this information? Effectively, you are limited to a 50mm bigger tyre and 25mm suspension lift without engineering. If you want to read through the document, you can find it here. Rim will stick out 18 mm farther. on the site(a tire service). If your tyres are worn to the tread wear indicators (TWI) 1.6mm or below they must be replaced. Our tyre size comparison calculator takes the measurements of two tyres and compares the overall diameter, tread width, sidewall, and difference percentage (%). Every 4WD should have a sticker which details the factory tyre size. I cant answer your question about whether they factor actual size, or theoretical size. do it properly and get it engineered stop bring the heat on everyone that does it correctly I have a jeep wrangler thats lifted 3 inches and with the correct guards all engineered didnt cost much engineering was only 600 through double black off road melb, Good to hear its all done properly mate. How to choose the right tyres for my car? This includes not showing signs of chunking (where chunks of tread break away), or separation from the tyre carcass. Regularly get your tyres rotated to ensure even tread wear. Ive just bought a set of used tires(205/60/16). Would be much appreciated. The sidewall is the outer wall of the tire, rather than the tread that contacts the road. VFX>UvpnsX&F{Mtuk-9hDD5EWsL4SjShxEI`%1*pZo&Wp+="YPh*FHc86t >0>]O#.e6+
You can use it for a wide variety of tyres including street, racetrack, trailer, spare, off-road and even extreme mud-terrain tyres. Base on the information you gave me 1 year ago: they go off the size listed, not its actual measurement. Copyright Drive.com.au 2023ABN: 84 116 608 158. Suggest you use the right terminology. Do electric vehicles really need specialty tyres? There are three main ways of measuring/checking your tyre tread depth. So which websites do 1inch lifts cant seem to find any. If you can see the entire platypus bill and your tread doesn't reach or cover it, replace your tyre ASAP. If you want this, you need engineering approval. Suspension and ride height Gazettal November 2016 2 (35 pages) . Though your tyres will really wear out over time, there are some factors that can accelerate the process. For finding the appropriate wheel for the tire size you may use our It also solves the problem of deciding what tyre you would like to run if you have inch . I dont mate, but Im told the guys at Regency should be able to give you a list. tire size or rims Choose a tab below to get fitment data for your vehicle or to find vehicles matching your criteria. Ride Height and Gearing to Remains the Same. When going to a larger tyre size or dropping down to a lower tyre size on a set of alloy wheels it is important to make sure your vehicles rolling circumference remains the same or as close to the original rolling circumference as is possible. Tyre dimensions explained. When you fit larger tyres, the vehicle height only goes up by half of the tyre height difference. A very useful tyre calculator when searching for tyres that are a different size than stock. While it may sound simple just to increase the diameter of your wheels, as you . Discover alternate tyres based on your rim size. 185/70R13. Example: 195mm. If you are towing its even easier to be illegal. TYRE UPSIZE CALCULATOR. I'm in NSW the anal state . Note: Tyres showing wear on one side, or showing feathered edges to the tread pattern, are often indicative of mechanical maladjustment. Checklist for fitting upsized wheels and tyres Tyres must be legal for road use Tyres must match or exceed the speed and load rating for the vehicle . Inspect for uneven bulges, cuts and cracks. It is 15.2mm larger than that of 225/40/18(637.2mm). Disclaimer:Tyre interchangeability is not always possible, so be sure to Tyre Condition. Your tyres are the only part of your car that touches the road. Bigger tyres and lift kits will make a 4WD more capable off-road, but it also makes them illegal on the road, unless you have jumped through a number of hoops. Additionally, wheel width cannot be increased by over 25mm of the widest factory option without needed certification. %. For more tyreand wheel information check this Vicroads PDF. Tire Calculator Notes: Tire diameter can vary slightly for each tire model. It is similar to 315/75/16. Online Tyre Size Calculator. It possibly is correct, but itd be good to know for sure. . My intention is merely to make those with 4WDs aware of what you can and cant do, and how those decisions can affect you in terms of your insurance, the way the police deal with you and what modifications can do to a 4WD. The tyre size calculator shows the effect of changing tyres. We would like to hear:
Coil spacers are not ideal, but they do work. Learn more Nitrogen Inflation
Its not worded very clearly, is it? You already have one wheel Tire Conversion Chart Bolt Pattern Finder Tire Pressure Calculator Tire Height Calculator Metric Tire Conversion Tyre Size Calculator Tire Height Chart All . In WA, you can only lift the roof of your vehicle 50mm total, in combination of suspension lift, body lift and tyres. . %PDF-1.6
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An Xtrail will go to a lot of places. In my case. 205/60R16. The only exception is if there are larger tyres in your model range; see this for more information 50mm tyre size increase. you can enter the chosen tire size and you'll be presented with the adequate rim width range for the tire size. Email Us. If the tyres you are running are bigger than 50mm than the number stated, you have a problem. W8(%0YdTMg7mc:*tN|=qA}sUrUs\|D[W;4.LXrwf4zKB1ifMn(i( l&'I1el~W7}O)#"a$?KdYkl #q;V;}B@SETJLs_Z~"Nt"EwV20pWZHocZ@cE2FcT]x'E #J
175/70R13. Cheers. Look at your existing tyres and enter their size into the calculator. DPF is not in every diesel..they were trialed in automatic Nissan D40 for example in 2009/10then removed..my 2011 auto does not have a dpfplease get your facts right before you publish Please choose a category from the left menu. When changing your tyre size, stay within 3% of your original tyre's diameter and height. The tire size comparison calculator takes the measurements of two tyres and compares the diameter, width, sidewall, circumference, and revolutions per mile. It probably is over regulated, but it does stop a lot of people doing stupid things too. are for the OE tyre(i.e., stock tire). For each tyre size you input our tyre calculator suggests multiple tyre sizes that are with in one inch bigger and smaller of the entered tyre size. you install the larger wheels on a car. inn of the mountain gods gift shop / circle k workday login / legal tyre size calculator nsw. To calculate a metric tyre to height in inches: (#1 x #2 / 2540 x 2) + (#3). An assembly consisted of OR. Wheel/Rim Size Calculator in which For more tyreand wheel information check this RTA PDF. Team-BHP Support . Read this for more information 50mm tyre size increase on models in your range. A bigger wheel and tyre combination can really enhance the look of your car and often provide benefits to grip and handling. Tyre Disposal
Factory standard tires on the MR Triton is between a 245/70R16 or 245/65R17 or 265/60/18 which all roughly equate to . When upsizing the wheels and tyres, the overall diameter must be no more than 15mm larger or 26mm smaller than the tyre size designated by the manufacturer for that particular model. I currently have a 3 lift with 35 tyres on a dealership purchased 2013 XLT Ranger, Ive been looking at the engineering list and sent out a few emails but noone has actually been able to put into steps just exactly needs to be done so I can avoid getting stickered. I found this from Mr 4x4 in my inbox this morning. The overall diameter of the rim cant be more than 15mm more than manufacturer specifications, while the rim and tyre are also not allowed to foul the bodywork or suspension. 5 - supersedes Rev. We have tyres to fit all your driving needs and all budgets. Its only the inch below the diff that raises the vehicle. Check out our guide for answers to all your questions. Just fill in the inch measurements you are looking for and it will calculate and exact metric version of that tyre. Consider the following, at highway tire pressures you have maximum clearance under the diffs, but drop the pressures from 40 psi to say 20 psi than your diffs are earthward bound, bigger tyres allow more air under the diffs, bigger suspension lift puts the driver into rarified air but does nothing for diff clearance its only the tyres that does this. Its hard to get this sort of information from insurance companies too, but perhaps it would be worth a go. Download Article. I, ANDREW BROAD, Assistant Minister to the Deputy Prime Minister, determine this vehicle standard under section 7 of the Motor Vehicle Standards Act 1989. Table columns headings: Column "Diff" may have percentages in the range from -3% to +4% (+5% for Winter tyres), which are allowed. ProFleet, your fleet of vehicles gets priority booking at over 270 Tyrepower locations across And I just have the third party insurance, My car is not covered by the policy. Motor vehicles in Australia are subject to many complex but necessary safety standards, and tyres are no exception. Why Buy Tires Online? Ok now add the revenue earners into the fray and you are behind the black ball, without any sense of engineering principals of strength and capability they are totally reliant on the lowest common denominator, the specs. The most likely place tyres will rub is near where your accelerator is, when you are full locked one way and the tyres flex up. New Size. Modify or construct a vehicle. Our handy Tyre Calculator lets you see all the acceptable tyre sizes that exist . Nicely written article Aaron, cheers buddy. Tip: To determine if the tyres you have selected require certification you need to look at the tyre placard fitted to the vehicle by the manufacturer. Tyre Repair
Its a total joke, and is causing a lot of dramas. The tyre plus sizing or the tyre upsizing is the procedure It's time to get a new set of tyres to avoid possible blowouts and accidents. Example: The height of this tyre is 65% of . Find the right tyre size for your vehicle or learn more about tyres, Tyroola offers free shipping and delivery to selected metro areas, At Tyroola you can fit out your whole car under $160. The vehicles steering or suspension geometry may need to be checked. 2. difference between an optional tyre(OT) and the original equipment(OE) tyre fits within the range of -3% to +4% P275 / 35 ZR20. Those Suzukis go really well off road; I would give it a whirl on a beach under some controlled circumstances, and see how it is. The second number on a metric tyre is to calculate the side wall measurement. Then as a bonus it shows examples of your speedometer reading with the first tyre, and the actual speed you"re traveling if you were to install the second tyre. By fitting larger tyres, your braking capacity is reduced. Overspeeding - especially when cornering When using a tyre size comparison tool, it's important to know the difference in the outer diameter. Learn about all terrain tyres and when theyre best used. Hi Aaron, Do I need engineering approval? JavaScript is disabled. Legally in Australia, tyres must have a minimum tread depth of 1.6mm. To calculate a metric tyre to height in inches: (#1 x #2 / 2540 x 2) + (#3) Example: 285/75R16 (285 X 75 / 2540 x 2) + 16 = 32.8 inches tall. Assuming that this is OE wheel/tire and there are no any problems with clearance on both sides. A tyre size conversion calculator or tyre diameter calculator are the best ways to get the answers you are looking for. specific new wheel diameter you've entered, aren't all suitable for your car. Australia and New Zealand. Just as many dont know, but either way, you really, really need to care as the consequences of driving an illegal 4WD are extreme. . Plus Sizing your tyres can be also referred to as stepping up. In NSW you are allowed to fit wheels that are up to 26mm wider than the manufacturers specified wheels without needing to notify the Roads and Traffic Authority (RTA). The entire point of having vehicle standards is to ensure that people drive safe vehicles on the road. Fitting and adding alternative fuel tanks are also covered: Fitting/adding an alternative fuel tank or repositioning an existing fuel tank to non-original mounting points. It is also dangerous to drive because: Your tyre will lose grip and traction. I hope this chart can help people find out how big there tyres are. Therefore you need to find 20" tyres with a rolling distance that falls between 651.4mm and 679.4mm to be legal. Are 1inch coil spacers any good. If you live in different states, then you will have to do some digging. The moral of the story here is that if your aftermarket fuel tank is a different capacity or mounted differently, ensure it comes from a reputable source that has already done the certification hard work for you. A long-lasting summer tyre designed for vans and other people movers. Outside Diameter = 778.50mm. Tire is 5 mm closer to suspension components. Not every modification will make your 4WD more capable; there are a lot of Downsides to 4WD modifications that people dont think about. If your tyres are worn to the tread wear indicators (TWI) - 1.6mm or below - they must be replaced. A great, cheap option for light trucks and vans, providing low noise and comfort on the road. Click here. NEW feature: Or, You can display adequate tyres for all three Plus Sizing methods: Towing capacity; a simple guide to keep you legal, 50mm tyre size increase on models in your range, https://bigtyre.com.au/store/P2592/825r16-haulmax-att304-set-14-ply-tube-tyre, What to take on a lap of Australia, and leave behind, The progression of camping; perspectives and what you really need. Shop for Tires. 31X10.5R15. Toyo OPAT2 - LT285/65R17 121S - That's a 121 . Join Date: Feb 2004. In many cases, a vehicle with 50mm tyres and a quality 2 inch lift kit will handle better on the road, but you still need to prove it is safe by having an engineer sign it off. But do your own checks first because there is a 24 xtrail version. Calculate your offset, compare tyre stretch, rolling radius and more. Calculating Sidewall Height: The sidewall height of our stock tyre is 65% of the thread width (185/ 65 R15). experience with the Tyre Size Calculator,
I live in Victoria, Youll need to go to the local road authority website and see what they use. Keep reading to learn more about Australian tyre safety standards, including how to measure your tyre tread depth. If we have a look at two tyre makers product lines that we have experience with in here at Adventure 4WD there's a couple of alternatives that offer far better strength. Now, I understand this post may get your blood boiling a bit, and I totally understand. The tire dimensions listed satisfy only one criterion in the quest for a new tire dimension, the one The Police have a responsibility of pulling vehicles over that they deem to be un-roadworthy. A tyre tread depth gauge is a handy measuring tool that you can use to measure the tread depth of an individual tyre. And hopefully stop people starting all the posts about how big there tyres are. 1. The diameter of 205/60/16 is 652.4mm. Maybe the ultimate compromise is to find some alloy wheels second hand off a 17 or 16 Vitara (after finding out that they fit) and going with them? If you have an accident and they trace it back to the fact that the tyres youve fitted contributed or caused it, you will be in trouble regardless of what insurance you have. I think ive understood that the diameter cannot exceed 50mm, what about width? There is a government website that most workshops have access to, which gives you all the detail you want about roof height. width affects the tyre choice also, besides its diameter. Tyre Size Guide. This second number is that percent. Anything below 1.6mm is considered illegal in Australia. Discover our interest free finance options. 265/70 R16 - 30.7" 265/75 R16 - 31.6" 275/70 R16 - 31.2" For a better experience, please enable JavaScript in your browser before proceeding. Start by entering your tyre size. Tire Size Calculator - tire & wheel plus sizing courtesy of 1010tires in Canada . In fact, the actual diameter of the tyre is not larger than 15mm of the size of 225/40/18. Incorrect tyre pressure Compare your new and existing setup and our tool will show you key measurements for accurate . It will take longer for your brakes to stop the car on wet surfaces. Im perplexed by all detail or lack of detail, I find that there is no information on roof height and certainly nothing on hub to guard measurement that authorities use as the basis of prosecution. In reality then, you are limited to: 1 inch lift and 2 inch bigger diameter tyres (together) 2 inch lift and the same size tyres. Enhance grip and traction for safe braking and confident driving. if suspension flex is your cup of tea, you have either the wrong vehicle or as a weekend warrior either way you are close to home. See changes to diameter, ground clearance, speedometer and get guidance. Your new tyre is more than 15mm taller - check that's legal, usually limit is +15mm for cars, +50mm for 4X4s. dimension, the wheel diameter, but you also need to know the wheel width. The only way this does not apply is if it has been signed off by an engineer. This is why knowing how to measure your tyre tread is so important. Section width x 75% (the aspect ratio) x (two sidewalls): 265 x 75% = 198.75. Im not sure what the regulations are over there, Thanks for that.I will give them a phone call. I think they do this as its the only measurement that goes up with increased tyre size, suspension and body lifts. In other words, 1 inch goes above the diff, and one inch below the diff. At the end of the day, this is far more important than how far your 4WD goes off road. endstream
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The only exception is if there are larger tyres in your model range; see this for more information - 50mm tyre size increase. I think the tyre size thingy applies to the biggest tyres fitted to the model. https://mr4x4.com.au/4x4-suspension-modification-laws-suspension-manual-published/?utm_source=ActiveCampaign&utm_medium=email&utm_content=4X4+suspension+Laws+published+-+read+them+here&utm_campaign=PC+Newsletter+154+(Copy), http://www.rms.nsw.gov.au/documentscations-manual-suspension-and-ride-height.pdf. If you have an accident with illegal mods, you could be in trouble. Disclaimer: This page will calculate metrics for informational and general comparison purposes only. Our specialised tyre experts are here for all of your tyre puncture needs. The #vanlife world needs an off-roader, is the Ford Transit Trail the solution? If Im honest, I reckon if you do find an engineer who will approve it youll be up for a lot of money. http://www.rms.nsw.gov.au/registration/downloads/vsi/vsi6.pdf, Have a clearer view with Next Gen Towing Mirrors, Evolution of the Ford Ranger in Australia, How this Next Gen Everest was turned into a beach touring machine. This can be calculated using the following; RD = 2 x (60% of 215) + 16" x 25.4mm. Its value Im struggling to find an engineer that is sympathetic to my needs, and I have several mods that need engineering. 378 0 obj
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Id like to know that Im not sharing the road with people who are driving unsafe vehicles. Unless you planning on doing serious off road work, Id get the 16s. Your tyre size can be found on the sidewall of your existing tyres. 225/50R17. The GU would be one of few that can legally run 285/75r16 or equivalent these days. I dunno why theyd issue these on something with so much 44 going on. hok0\d$(2[H6JjpL^Kf 9HLe x@j((B(G}#@)@n@!46
)) HEP cY The Prestige being the top-of-the-pops 44 model with various extras including low range. Sometimes the tyre placard will show more than one tyre size, allowing optional tyres of that size to be fitted. When your tyre tread wears down and becomes flush with these indicators, your tyre has reached the limit of its safety. And for 4WD owners and prospective buyers the big news is this: "Allows ride height to be increased by 75mm; comprising 50mm suspension and 25mm wheel/tyre without requiring certification under . For example, in some parts of Australia you can legally run 50mm bigger tyres with a 50mm lift, but not in WA. If caught driving an illegal tyre, you will receive afine and demerit PER TYRE below the legal limit- which varies per state/territory. The chosen wheel will determine the real tire size when the tire is fitted on the wheel. So youre entitled to work your figures based on the taller tyres even if they werent original to your particular car. The biggest tire you can fit on a MR Triton with stock suspension and stock rims are 235/85/16. Tires calculator. If anyone has more that they kno let me kno and ill add them on. it really depends on the officer that pulls you over ,you carnt get 22 inch tyres with the legal load rating to suit the ve,the 22 inch wheel size is ok ,but put an hsv tyre plackard on just incase your . You can also run comparisons between different tyres and work out the differences in size and odometer corrections. South Australia has a regulation: The overall diameter of a wheel and tyre fitted to a vehicle must not be more than 50mm (4WDs) or 15 mm (other vehicles) larger than the largest tyre size listed on the tyre placard. When it comes to these results, it is recommended that you only use options within 1.5% and -2%. Dated 25 October 2018. Tread depth is how much tread you have left on your tyre and is measured in millimetres in Australia. So that's 42.5mm increase and my suspension setup has lifted the car pretty close to 50mm. Let us know about your Need tyres? Pat Callinan's 4X4 Adventures; December 1, 2013; . endstream
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Anything below 1.6mm is considered illegal in Australia. It sounds like you are legal, despite the police not being on the same page. If you have any questions about tyre sizes, please give us a call on 02 8880 4628 or you may find this online tool helpful. Fenders. Good to know. Ensure tyres have adequate tread depth. Example not requiring certification: Fitting a replacement fuel tank of equal capacity using the original manufacturers mounting points. In many cases, unless the assessor is very knowledgeable, or your vehicle is obviously unroadworthy, your claim will slide by with no problem at all. Tire Calculator; Articles; Tire Glossary; API Data & Services . Using our Tire Size Calculator, you can get exact measurements for your current tire size. So, be careful. The formulas will also show you the matching ExplorOz Wheel covers that match your tyres. Get recommended upgrade/replacement tire sizes, with adjustable difference variables (rim size diff./section width diff./circumference diff.) Please don't hesitate to send us your inquiry . I think there is going to be a lot of cracking down in the near future! In the last two years more than 160,000 calculations have been made by over 33,000 people! Our tyre size comparison calculator takes the measurements of two tyres and compares the overall diameter, tread width, sidewall, and difference percentage (%). It is not a 100% guarantee of correct fitment. Before lay down any money, it would certainly pay to have a close look at the relevant documents to ensure that any mods you might accidentally do incorrectly wont land you in hot water further down the track. If you have bigger tyres than standard and a 2 inch lift (or bigger), your vehicle is also illegal. What happens when they defect you? Australian law states that if your tread falls below 1.5mm or your treadwear indicators make contact with the road surface, your tyre is classed as unroadworthy. You might think this doesnt apply because your car looks like a 44 is 44 but apparently Ford Everest is category MA ! Defective brakes. This is where things get a little interesting just because you are running a lift kit and bigger tyres does not necessarily mean your vehicle is unsafe, providing the work has been done correctly with quality components. First step is to find a quality engineer, although it sounds like youve already been trying that. Hi All, . Cheers. Select the Dimension of your Tyres to Determine the Overall Diameter. For the purpose of this post, I will only touch on body/suspension lifts and tyre sizes. Tread wear indicators are little raised notches of tread moulded into your tyre's tread grooves. 7. the 285/75R16 is a legal tyre . When it comes to these results, it is recommended that you only use options within 1.5% and -2%. Details. Do you know of any engineers in SA that could sign off a 4 wheel drive?