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Not a chance. I would think you would need at least a 2" lift to run 285s and then you may still need to trim or remove side steps. Do a search this has been covered many times. I would imagine there are a lot better tires than pro-comps for the same or less money. Goodyear duratracs, nitro grapplers or bfgs would be my choices for A/T tires. Check out tirerack.com for best prices and reviews. I'm running 265/70/17 duratracs (they run on the big side) with 2.5" lift and I love them. I do a lot of city driving and my mpg dropped by about 2, I could only imagine what heavier 285s would do.
I have 285's on my truck but it is lifted. It still took some trimming to make things fit and I still experience a slight rub now and again. I did the lift at the same time I did the tires so I can't say with 100% certainty but I'm pretty confident they won't fit. My previous tire was a 265/70/17 prior to the lift and that was pretty much maxed out. Even that took some trimming to prevent rubbing.
285s won't fit without any modification to the suspension height and wheels. I have 2" lift with 32" (265/70/17) tires. Had the tires mounted before the lift and there were definite rubs inside the wheel well. also, 285 will probably rub against the upper control arms. I have about 1/2" clearance with my 265. You will have to get either wheel spacers or new wheels with more aggressive offset/back-spacing.
you need a 2" lift all around (lifting just the front would look funny now wouldn't it)
you need wheels with at least 10mm more offset than the stock wheels to not horribly rub the upper A-arm. stock wheels have a 25mm offset.
Aftermarket rims make it much easier to fit these tires in relation to the upper A-arm, but the Tundra split 5 spokes and some FJ cruiser's have 17" factory wheels with a +15mm offset which helps quite a bit.
I did 2.5" lift and 285 tires on tundra wheels which have a 15mm offset, vs the stock gx 25mm offset, and that was enough to make it fit and not touch the A-arm except slightly under full compression.
I also had to trim the front fender plastics and cut a triangle out of the inside front of the side steps.
caster was thrown to the lower extreme due to the lift and factory A-arm, in the future I will be getting aftermarket upper A-arms for more clearance and more caster adjustment for alignment to get it back to perfect specs. with the lower caster it drives fine, but is slightly twitchy at higher speeds, feels better than most toyota trucks still to me.
Does the 2" lift all around entail me removing the rear suspension air bags?
Generally, yes. You can add spacers to the rear air bag sensor (lots of posts on various forums) but you're raising the truck by adding more PSI to the bag, which causes harsh ride. Some people don't notice it, but most people complain about the rough ride with tricked out rear sensors.
I ran my truck with tricked out sensors but ultimately ripped them out and replaced them with coil springs. Much better. Plus, if you plan on doing any off-roading, a few people have reported their air bags popping out under full articulation with tricked out sensors. This was the main reason why I replaced them with coils. Didn't want to find myself with no rear suspension in the middle of nowhere.
Does the 2" lift all around entail me removing the rear suspension air bags?
alot of the knowledgeable people on here who have done lifts.. bigger wheels and tires etc. have build threads, you should check them out I learned alot from reading others build threads on here. I only got my GX earlier this years but I am a toyota nut to say the least so I wasn't starting from scratch but still lots of good info about these cars here. I have mine all documented in my build thread, link is in signature, I did the minimum I needed to fit my tires, I don't use the vehicle for offroading etc.. it may see a campsite a few times this year but an rx300 could make it through that.
for more offroad usage I would do coilovers in front and swap the rear to FJ coils and bilstein shocks, but for now I am rocking a leveling 2.5" spacer and tricked the rear airbags 2"
you need a 2" lift all around (lifting just the front would look funny now wouldn't it)
you need wheels with at least 10mm more offset than the stock wheels to not horribly rub the upper A-arm. stock wheels have a 25mm offset.
Aftermarket rims make it much easier to fit these tires in relation to the upper A-arm, but the Tundra split 5 spokes and some FJ cruiser's have 17" factory wheels with a +15mm offset which helps quite a bit.
I did 2.5" lift and 285 tires on tundra wheels which have a 15mm offset, vs the stock gx 25mm offset, and that was enough to make it fit and not touch the A-arm except slightly under full compression.
I also had to trim the front fender plastics and cut a triangle out of the inside front of the side steps.
caster was thrown to the lower extreme due to the lift and factory A-arm, in the future I will be getting aftermarket upper A-arms for more clearance and more caster adjustment for alignment to get it back to perfect specs. with the lower caster it drives fine, but is slightly twitchy at higher speeds, feels better than most toyota trucks still to me.
I have 285's and no lift with a 0mm offset rim and the rubbing I have is negligible. It can be fixed with a heat gun and MAYBE minor trimming.
Looks good, but I think chiefer is interested in 285/70/17s which are taller than 285/60/18s.
Right, but it's the width of the tire that rubs, not the height. So if the offset is correct, he should be able to get away with it in theory at stock height. My truck will be in Moab in August so we'll see how mine works out at full stuff and extension.
06-02-15, 10:53 PM
285's on a stock GX
