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-   -   92 Firebird rear wheels (https://classracer.com/classforum/showthread.php?t=68694)

Larry Ingram 01-12-2018 03:28 PM

92 Firebird rear wheels
 
Will a 10.5x29.5 or 10.5x30.0 fit under stock 1992 firebird rear well, and if so what rim width and back-spacing do you recommend ? Thanks, Larry

Eman 01-12-2018 08:15 PM

Re: 92 Firebird rear wheels
 
I've got an 85 Camaro bracket car. I've done extensive modifications to fit my 29.5x10.5W MT's on 10" rims with 6.5BS. Even with 5.5 BS it takes a lot of modifying. Since mine is a bracket car the cutting pounding and grinding don't matter, but on a stocker I doubt it will fly. I actually mini tubbed the front of the inner wheelwell back when I had 29x10.5 Hoosiers and 5.5 BS. it took removing the coil springs and cutting off all of the bulge where the coils sat, i went to coilovers. The 29.5 MT slick is very big, the 29.5 PBRS have a little more room. My car has a 9" from a 71 Torino under it, the width is close to stock.

Larry Ingram 01-15-2018 06:17 PM

Re: 92 Firebird rear wheels
 
Thanks,Eman This is a bracket car also

richie 2 01-16-2018 09:23 AM

Re: 92 Firebird rear wheels
 
wolfe racecraft make a nice mini tub for that car...

Eman 01-16-2018 09:02 PM

Re: 92 Firebird rear wheels
 
The problems are really at the frt. lower factory tub of the wheelwell. Hrd to fit much on a 10" wheel with the way that frt section is shaped. I used a sawzall and cut the frt. section out and made a box. Then as time progressed and i tried the 29.5x10.5W It took a lot more cutting. If I was starting over with one of these bodies I either would have back halfed the car for big tires or at the very least cut a lot more out. The factory coil spring pockets are a problem area as the bulge into the tire space. Either commit to the sawzall or stay with stocker size tires and make the suspension work. Small tires can be a liability on many tracks when bracket racing, especially if you build power or have a lot of starting line ratio.


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