Body mount chop
- Thread starter Smacc83
- Start date
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“285” is not a tire size - more info please.
- Thread starter
- #3
285 65 17
That tire size looks like it would be about 31 1/2” tall. While I don’t have direct experience with that lift and tire size, it seems doubtful that you would need a chop for that. Maybe some plastic fender lining persuading...
r2m
Richard
Just looking up the stock tire size for a GX I found the following:
Stock 2019 GX460: 265/65 18 = 30.5"
Your suggested size: 285/65 17 = 31.6"
I would think that you could probably stuff that 285/65 17 on your rig with stock suspension AND it will definitely fit with a 2.5" lift!
Remember, you're only talking about .55" (a little over a half inch" ride height).
Do it and call it done!
One last thing, are SURE that is the largest tire size you'll ever want to do? Just be sure you're getting the right suspension lift. it's an expensive mistake if you decide to go with a much larger tire and realize that you needed a higher lift.
Stock 2019 GX460: 265/65 18 = 30.5"
Your suggested size: 285/65 17 = 31.6"
I would think that you could probably stuff that 285/65 17 on your rig with stock suspension AND it will definitely fit with a 2.5" lift!
Remember, you're only talking about .55" (a little over a half inch" ride height).
Do it and call it done!
One last thing, are SURE that is the largest tire size you'll ever want to do? Just be sure you're getting the right suspension lift. it's an expensive mistake if you decide to go with a much larger tire and realize that you needed a higher lift.
r2m
Richard
If this is truly to be a "pavement princess", take into consideration what is the maximum size spare tire that will fit in the stock position under the rear.
r2m
Richard
Also, here is an easy tire size calculator I use for diameter sizing: Tire Size Calculator
There is a trick to help avoid a bmc. It requires the SPC upper control arms.
Take the rear lower control arm adjustment cam and turn it to where the arm is as far outward as possible.
Turn the front adjustment cam all the way inwards as far as you can.
Install the SPC uppers and instruct your alignment guy to only use the UCA adjustments NOT the lower cams.
This sets the lower ball joint about .5-.75" forward giving you just a tad more tire clearance in the rear of the wheel well.
Take the rear lower control arm adjustment cam and turn it to where the arm is as far outward as possible.
Turn the front adjustment cam all the way inwards as far as you can.
Install the SPC uppers and instruct your alignment guy to only use the UCA adjustments NOT the lower cams.
This sets the lower ball joint about .5-.75" forward giving you just a tad more tire clearance in the rear of the wheel well.
With no lift and 285/70 17s, I could use a BMC even for not-that-sharp turns on the streets. It's driveable and doesn't lock the wheel by catching, but it scrubs good. Wheels are 17x8.5 with -10mm offset.
With a 2-3" lift, the wheel goes backwards, more towards the BM, so the need for a chop grows. With new UCAs with 3-4* of additional caster built into them, you return more towards the no-lift situation of probably needing one for most people's use of the rig.
This is based on my experience only.
With a 2-3" lift, the wheel goes backwards, more towards the BM, so the need for a chop grows. With new UCAs with 3-4* of additional caster built into them, you return more towards the no-lift situation of probably needing one for most people's use of the rig.
This is based on my experience only.
I have a 2.5-3" lift with 285/70's on a 17x8.5" wheel with -10mm offset along with TC UCA's right at 4* and I still needed a BMC. Each vehicle can vary and differ but odds are most will need it if they plan to do anything more than simply drive around town.
I'm fairly close to 3" of lift with a 275/70 tire, 17x8.5" +10 offset wheels and SPC UCA's. No BMC. Rubs a bit only when aired down to 18 psi at full lock in reverse. All probably depends on tire size and type of wheels.
Embrace the Chop! Nothing to be scared of. Actually kind of fun!
Your offset and backspacing help and are a lot less aggressive than most.
