any mods needed for275/60/15 on15x8wheel with31/2 backspace

bottlesempty

Amateur Racer
Apr 22, 2007
246
0
0
southern maine
any thing need15x8modification to run275/60 with15x8 wheel 3.5BSanyone got pics please anyone have experience with 15x8 3 1/2 BS whats largest tire youve used will cut fender lip if needed I need a tire under this thing
 

bowtie81

Moderator
Mar 28, 2008
5,008
0
36
sarnia, ontario canada
I had 15x8 with either 3.5 or 4 inch b.s and ran 275-60's with no problems, but now with the 12 bolt i have 15x8 with 5.5 b.s and still use the 275-60's with no problems.
 

malibulvr

Pro Stocker
Mar 22, 2008
1,929
0
0
Pensacola, Fl. 32526
Re: any mods needed for275/60/15 on15x8wheel with31/2 backsp

Don't know what kind of car your puttin these on or if you have a stock length rear end , but.....in general, a 3.5" bs 8' wide wheel will work fine on a '81-later Monte, Cutlass, or Regal cause they have a larger fender opening than the earlier cars and the Malibu. If it's a 'Bu then it will have to sit at stock height and the fenderlip be trimmed or at least rolled. Really the best 8" wide wheel to fit a 275/60 is a 4" bs wheel. Largest I was ever able to use without issues on a 3.5" bs was a 255/60.
 

red barn

Frequent Racer
Mar 5, 2007
628
0
16
Syracuse, NY
Re: any mods needed for275/60/15 on15x8wheel with31/2 backsp

malibulvr said:
Don't know what kind of car your puttin these on or if you have a stock length rear end , but.....in general, a 3.5" bs 8' wide wheel will work fine on a '81-later Monte, Cutlass, or Regal cause they have a larger fender opening than the earlier cars and the Malibu. If it's a 'Bu then it will have to sit at stock height and the fenderlip be trimmed or at least rolled. Really the best 8" wide wheel to fit a 275/60 is a 4" bs wheel. Largest I was ever able to use without issues on a 3.5" bs was a 255/60.

Yup. It will fit on a bu, but you have to trim the fender lip and you can't really lower it
 

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