Floorman279

iTrader: (11)

im goona be ordering an s60 shortly,and i know that in the future i will be going with 305s or 315s..........if using oem z06 wheels orany knockoff replicas, do i need to consider getting a couple inches knocked off of my new rear? thanks

Floorman279

iTrader: (11)

......

TransWS6Am

iTrader: (41)

if i'm not mistaken you would want to do the exact opposite. you would want a longer axle with corvette offset rims. Guys with vette offset rims run spacers, maybe someone else can confirm this....

GIVE EM' THE BIRD

iTrader: (1)

I've got 285,35/18 sumitomo's on my z06's and I had to hammer in part of the fender well lol.

Floorman279

iTrader: (11)

ok.....so how much longer does my rear need to be?

msydow

i ran a 1/4" spacer with my c6's...only rubbed a little hauling *** around a curve. 285/30/19's. dont remember if that the right size or not.

Floorman279

iTrader: (11)

ok so now i know that it needs to be longer unless i run spacers which i would prefer not to do, so now, how much longer do i need...........id assume about 3/4 of an inch on both sides

02ws.sik

i have 315/35 c6 zo6 rims on a stock rear no spacer. hand held blow torch and a rubber mallet its close but it wont rub i have 13.5 inches of tire on the ground.

MeentSS02

iTrader: (11)

I have a better idea...run wheels with the proper offset. If you alter the length of the axles and housing, you are going to be stuck running whatever wheels will fit that offset.

The rear housing width has nothing to do with being able to run 315s...the size and shape of the fenders do.

02ws.sik

They fit well under the fender where the stocks did.

Floorman279

iTrader: (11)

ok i got it....thanks

GIVE EM' THE BIRD

iTrader: (1)

Yep, more practical to modify the fender well around the tire/wheel than to modify the axles... Easier too, just grab a BFH

Floorman279

iTrader: (11)

so to run 295s will it rub at all or will spacers be needed?

MeentSS02

iTrader: (11)

It depends on the wheel/tire combo. The 295/35/18s on my CCW 18x11 rears required me to roll the fenders, hammer spots on the inner wells, and grind on the bump stops.

BrianSF-GA

Definitely agree .... I ordered my S60 with the stock offset so I could run ZR1's or any other street F-Body wheel back space. My drag set-up will be RaceStars so the F-body back space will be fine. The only other option would be to narrow it so as to mount deeper dish wheel (less back space) ... it does look really good, but it limits your street wheel options.

A word of advice from experience .... if you are planning a UMI, BMR or Spohn drag sway bar, be sure to order your rear without the "stock" sway bar brackets. Also to be sure look at your axle stud options .... 12x1.5, 1/2x20 or 5/8 and 1.5"-3" long.

I presume you have decided on your carrier and gear ratio.