Rear tire sizing

[Gliderider06]

What is everyone running for rear wheel combos? I just bought a set of 15x8 rally's with 4.25" bs, for my 63. If I recall on my old 61, i was able to easily fit 275/60/15's under it. What do you run?

 

[skaz]

that's no problem for a 61

 

[blkblk63ss]

I run bfg's 255 60/15 all the way around on Corvette 8 inch rallys of course no problem. I could go bigger as you mention , but I don't like fighting getting the left rear tire off when axle is hanging. I had for a while 23570/15 and was a nuisance on the left rear getting off. With the bfg size it is no problem on left rear. I do have the axle centered with adjustable pan hard bar.

 

[63409impala]

I use 15x8 on my 63 impala with a 255 70 15.

 

[Skip FIx]

Test fitting on my 64 I could fit 275-60-15x on a 15x8 0 offset wheel but man it is tight . Not sure how body lean in a corner it will be.

 

[4Eyedturd]

315/35/17 on a 10.5” wheel. It fits but I’m not sure how much rubbing is gonna happen. I may send them off and get narrowed .5” or more if need be.

 

[boxerdog]

I'm kinda in line with Skip here, 275/60 on an 8" wheel works barely on my 61 if the backspacing is perfect. but there are a few other variables:

I have a 9" Ford rear end and I never verified that is exactly the same width as the rear end it replaced.

There can be a discrepancy in the actual sidewall width and tread width on 275 tires, especially when you get into the various street/strip types. Hoosiers, M/Ts, M&H are all a little different.

The 255 tires are not as common, but a lot easier to get on and off.

 

[skaz]

worst case you might have to roll the lip a hair , ive had both 8and 10' rims on 275's .on my 61
.now i have a narrowed the diff 2" and crammed 295's on

 

[63409impala]

15x8 with 4 3/4 backspacing I believe. 255 70 15 tire. Same as a 29.5x9. I also have 15x7 gm steelbwheels with 28.5x10 pie crusts on them. Top pic is pie crusts. Bottom is 255 70 radials.

 

[Gliderider06]

15x8 with 4 3/4 backspacing I believe. 255 70 15 tire. Same as a 29.5x9. I also have 15x7 gm steelbwheels with 28.5x10 pie crusts on them. Top pic is pie crusts. Bottom is 255 70 radials.View attachment 125056
View attachment 125055

That's a beautiful car! Kinda the look I'm going for with wheels except for Ansen 5 slots on the front.

 

[1964SuperStocker]

275/60 15 Nitto Drag radials on a 15x7" steel wheel. Works great on my wagon.

 

[63409impala]

That's a beautiful car! Kinda the look I'm going for with wheels except for Ansen 5 slots on the front.

If I could ever get the fu#$%ing engine to just stay together, I'd be able to enjoy it. But thank you.