HK1837 wrote:Welcome.
Do you intend to register this in NSW?
3” lift and wheels with an offset less than 5P cannot be legally registered.
I don’t think any of those tyres are legal diameter either. Depends on if yours has VSC or not, VSC first appeared in 2011 but only on diesel SR5 from memory. Those had 265/65/17 tyres which are about 776mm and you have to stay within 50mm of that. SR were smaller from memory.
HK1837 wrote:It’s also Insurance. If you have an accident and anything to do with the modifications is causal the Insurance Company can refuse the claim. And you may end up with nasty criminal charges. For example if yours has the small rotors (297mm) which are only designed for 255/70/15 tyres, and you go whacking on 285/70/16 tyres you will be losing a large % of your braking ability. I went from 255/70:15 to 265/65/17 and turned my rotors blue within a few months. Also changing your wheel offset from 30P to a negative offset changes the loading on the bearings dramatically. I know it is a big thing right now in NSW, Certifying Engineers have been told that the rules on track change must be adhered to. Going through it right now with my HK GTS.
I personally get nervous seeing (especially Rangers) getting around with huge tyres on tiny brakes with totally inappropriate offset, often towing way over their GCM. I’ve noticed Police nabbing a few down here lately too.
Brian_P wrote:Hi guys.
Looking forward to gaining some knowledge from this forum & hope to catch up with some of you guys out on the tracks.
I recently purchased a stock standard 2011 SR dual cab with 232K on the clock. I'm now in the process of throwing some coin at it & have just purchased.
Phat bars Black Series fox 3" lift kit
SuperPro adjustable upper control arms
Phat bars diff drop
I just purchased an iDrive for the wagon as well.
Next job is rims & tyres, looking at either, 33x12.5x15, neg25 offset
285/75/16, neg22 offset
305/70/16, zero offset.
Then, Phat bars stainless snorkel, Muzz bar & winch followed by custom tray & canopy.
Last thing I'll do is a remap & tune.
Cheers.
hiluxxury wrote:Brian_P wrote:Hi guys.
Looking forward to gaining some knowledge from this forum & hope to catch up with some of you guys out on the tracks.
I recently purchased a stock standard 2011 SR dual cab with 232K on the clock. I'm now in the process of throwing some coin at it & have just purchased.
Phat bars Black Series fox 3" lift kit
SuperPro adjustable upper control arms
Phat bars diff drop
I just purchased an iDrive for the wagon as well.
Next job is rims & tyres, looking at either, 33x12.5x15, neg25 offset
285/75/16, neg22 offset
305/70/16, zero offset.
Then, Phat bars stainless snorkel, Muzz bar & winch followed by custom tray & canopy.
Last thing I'll do is a remap & tune.
Cheers.
Welcome BrianP
Yeah many of us have been down the seemingly endless rabbit warren of mods - the comments above reflect that based on their own experiences, which even I admit that some mods aren't worth it.
I suggest you look at the 33in thread for wheel fitment. In my view and experience, something closer to 32in (still illegal) tyres and 2in lift are the best combination for the n70 offroad. Definitely get the diff drop and adjustable UCA to keep it steering on track and to protect your CVs - but also have a search here as many of us have been down this path.
I appreciate though that you want build your own - I suggest you start a build thread so people can chime in and provide advice/help.
Anyhow...this is the standard cut-and-paste intro that we give everyone, but that said... welcome to the forum![]()
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HK1837 wrote:You are limited too on a pre-2012 (other than 2011 SR5 diesel and 2008/9 TRD) with tyre diameter. In NSW the biggest tyre that just fits under the 50mm diameter increase is 265/65/17. A 275/65/17 is over a 50mm increase in diameter so no go. You can go bigger on the 2011 SR5 diesel and the 2008/9 TRD plus 2012 onwards as they were originally fitted with 265/65/17, but all those also have larger diameter rotors to account for the tyre diameter increase. So anything bigger than 265/65/17 (about 30.5” from memory) will need Certification, if an Engineer will even pass it which I doubt as the standard rotors are too small. You might convince one to look at it using the larger 319mm rotors off the 2011 SR5 diesel and then reset the standard tyre to 265/65/17. Then go up just under 50mm from there, a 285/70/17 is only just too big in that case, so maybe 275/75/16 (about 32 1/4”)?
HK1837 wrote:By the specs 225/75/16 are 744mm or 29.3”.
My 2011 SR5 had 255/70/15 which are 738mm or 29.05”
Both of these are suited to the 297mm rotors. I don’t think 225/75/16 are standard for SR though, I think it was a 205R16C which from memory is almost the identical diameter to the SR5 tyre.
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