Hirohawa

Has anyone ever modified or shaved down the inside of the rear wheel wells for taller tires?

Not the painted fenders - I’m only interested in the black plastic inside the wheel after the liners are removed. Want to avoid further rubbing.

thanks in advance.

***Updated with pics so no one thinks I'm making a Donk or a 4X4.

Hirohawa

Bump.

madsonp

Can't say I've heard of anyone doing that, but isn't adding larger tires going to throw your speedometer off ?

BWF07

What exactly do you mean taller tires? Are you talking like 22's?

BadAV

Wheel size doesn't dictate tire height.

Dano523

Wheel well liners are just thin plastic, so no real shaving of them, or the fender as well.

But really, if you wanting to throw on large rim spinners, you have the wrong car to being with.

FatsWaller

You want to avoid further rubbing. Sounds like you've already installed the tires. What did you install and why? Keep in mind that you need to be close to the OEM ratio of front to rear tire diameters or the nannies may kick in when you don't expect them.

EvanZR1

This.
You can run somewhat larger tires without issue. I've run 1/2" taller with no issues and I'm lowered all the way on stock bolts. On my previous GS I tried running 1.4" taller tires in the rear (335/30R20) with the car at normal ride height for a GS, and ended up breaking out one of the fender liners on a full compression dip at high speed. So I'd guess you'd probably be ok somewhere to about 1" taller than stock at normal ride height, and might be ok even at 1.4" if you raised the car all the way up on stock bolts (I personally wouldn't try it again). You could also just remove the fender liners (ran this way for several months after the one got destroyed), but the car will have noticeably more road noise.

BMF_C6

There is no shaving the rear end without what it looks like major structural work. Here is a picture of the rear with all the panels off, you can see where I used sound deadener panels. This area is tight!!!!

Hirohawa

Yeah I'm just looking to shave just a fraction - like 1/32" or less - as I get a bit of rubbing on the rear with the FACTORY WHEELS with taller Michelins on.

SteveBlakeman

I recently installed 305/35R20 tires on the rear of my 2010 GS, which is a 1.7" increase in diameter from the factory GY's. We then took a road trip and when loaded with luggage and my wife it would rub on the right rear (not the left) when hitting significant humps in the road at highway speeds. So I raised the rear suspension bolts on both sides by about 18 quarter turns to raise the rear end up just a bit. I also shaved the inner fender where I could see the rubbing taking place with a grinder, but as it has been said, there's not much there to shave off, so I'm not convinced that made much of a difference.

I've not yet taken another trip to see if it still rubs or not, but driving locally it appears to be less likely to rub. I have had no issues with the "nannies".

Hirohawa

The rubbing I get is on the right side as well.

thanks for the suggestion.

Hirohawa

Pic for attention.

1Willy1

Unless my 2011 grand sport is different, the only thing that needs shaving is the actual fender itself, the inner lip.

I sanded mine down by hand with 80 grit, then 220, then 400 , then 800, it feels like it came that way from factory

I was rubbing in the rears after Installing a custom made 20x13 set of HRE