Wheel insight

383_GrandPrix

383_GrandPrix

Master Mechanic
Sep 9, 2016
343
211
43
Quebec, Canada
#11
383 your running a rear end from a 75 Monte which is wider than the g-body so you need more offset. Section width will change with rim width and as UNGN brought up, tire manufacture.
Unfortunately I haven't installed that diff yet so I'm still running on the factory 7.5
 
azmusclecar

azmusclecar

Apprentice
Feb 13, 2018
91
28
18
Arizona
#12
hey guys, i'm looking into ditching the factory 15x7 rallye wheels in favor of a set of weld prostars, i'm looking into stuffing a 275/60/15 or a 275/50/15 tire in there. I've looked high and low at pictures and posts but most don't have backspacing and I know each car really is different than the next. currently I run 255/60/15 on the factory 7" wheel with 4" of backspace (factory) and its tight to the frame rail, maybe a 1/4" at most of a gap. I was thinking that a 15x8 wheel with 3.5" of backspace would properly place the tires further out towards the fender lip, any thoughts on this logic? i'm stuck with either 4.5" or 3.5" backspace and would prefer not to run spacers or notch but also would like to get the widest drag radial I can in the stock well to help harness the power the big block will put down. anyways, any thoughts and insight is always appreciated. I know i'm asking for the world!
Kindly update your thread when you do decide on your Weld Prostars..... I want a set in the 15X7 and 15X8 and I keep window shopping. I haven't been able to truly find a good deal on them. You can PM me to keep your thread clean without my interference. Thanks, now back to our regular programming.:)
 
snotrocket71

snotrocket71

Greasemonkey
Feb 20, 2011
218
13
18
Wading River Long Island
#13
hopefully i'll be ordering the wheels and tires in the next couple of weeks, its incredible how expensive it is!
 
Injectedcutty

Injectedcutty

Comic Book Super Hero
Nov 24, 2014
2,813
4,388
113
Louisville, KY
#15
15x8 with 4" backspacing, BFG Radial TA, and stock 7.5" will be tight but will work if not lowered too far.
I had 15x8 Centerline's with a 4.5"BS and a 235/60/15 BFG TA. They were close to the frame with the 8.5" rear, but never rubbed.
 
azmusclecar

azmusclecar

Apprentice
Feb 13, 2018
91
28
18
Arizona
#16
hopefully i'll be ordering the wheels and tires in the next couple of weeks, its incredible how expensive it is!
In the long run, it's a lot cheaper than a cocaine habit............the parts sellers are our dealers.........and they know we will pay "through the nose" :ROFLMAO:sometimes to get what we want.
 
el camino ss 84

el camino ss 84

Greasemonkey
Oct 23, 2016
209
51
28
Nw okc
#17
I ran 15x8 4 inch backspace with 275/60/15 for my Malibu lowered 1 inch no rubbing. Now it has 17x9.5 with 275/40/17 still lowered 1inch with no rubbing.
 
64nailhead

64nailhead

G-Body Guru
Dec 1, 2014
733
427
63
Upstate NY
#18
hopefully i'll be ordering the wheels and tires in the next couple of weeks, its incredible how expensive it is!
Look at Vision Wheels. They look decent, are decent quality and they are budget minded.
29894118_1678584208915232_1287927805_o-jpg.86971
 
azmusclecar

azmusclecar

Apprentice
Feb 13, 2018
91
28
18
Arizona
#19
Wow they look awesome....................:cool:
 
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