c5formula

iTrader: (55)

well thinking about my rear gear issues and how im going to run out of gear on the spray with some 28"s. well i much rather just switch out the tires than the gears.

so can i run say a 29" or 30" tall tire on the rear of my 97 formula firebird or am i going to have to modify something??

01SOMZ28

iTrader: (37)

i think anything bigger than a 28" you're going to have to cut the bumper for sure, not sure what else.

Steve Burger

iTrader: (33)

I have a 29.5 on mine and had to do a bit of work to the cover as well as the tubs.

c5formula

iTrader: (55)

steve, what all did you have to do to your car to make those fit? any way you could post up some pics?

BlackScreaminMachine

iTrader: (17)

Steve is about as good of an authority as your going to get. I would PM him. Sounds like you want to fit the biggest tire but not have to cut up the car.

Minshall

Im running 29.5s. I had to cut the rear bumper a bit and take a flapper wheel on my grinder to the lip of the fender. I didnt have to take much off the fender. maybe an 1/8th of an inch. As long as you have a panhard bar itll make things much easier.

c5formula

iTrader: (55)

yeah i dont want to have to cut up the car as this is my baby lol and my DD. i just need to be able to run a taller tire when i go to the track an thats it. i really dont wanna hack my car up ya know.

Pro Stock John

iTrader: (34)

When you go from a 28 to a 29, 29.5 or 30 inch tire you have to start cutting the front and rear metal/plastic. You might also have to cut back the area near the front LCA mounting point.

I've often thought one way to minimize the surgery would be to run a longer driveshaft and push the rearend back a bit. Then you could just cut the rear bumper back.

Hoosier makes a 29x10.0 slick I think, that might the least intrusive tire to move up to.

JL ws-6

iTrader: (50)

That tire will fit, but even it needs extra clearance. 28x10 is about as big as you can go, unless you go with a radial that doesn't grow at all, in that case you can get away with a 295, but the car will need a minitub. If you pull the tires in an inch, you probably can get away with a little more.

SlickVert

iTrader: (5)

Bogarts and 28" will fit.
Bob

JL ws-6

iTrader: (50)

The burkhart front end I bought has the arms narrowed an inch to pull the tires in a little, I'm 100% sure it will clear.

Not sure if I'll need the clearnace/height back, I only had an inch of drop built in not 2.. if I went with the 2 inch drop, a 28 inch tire would absolutely be needed.