So I'm looking to put 15 inch stock looking rally wheels on my 70 Cutlass. I have 14 x 7 SSIII's now and want to aquire a set of 15's before I have to buy tires. I've found a set but there are tires on them so I can't see the stamping inside that says what size they are. My question is did they make a 15 x 6 or are they going to be 15 x 7. Also I see threads about 15 x 8's and 10's on this site. Did Oldsmobile make these or are they all some aftermarket product.

Thanks

 

As far as I know all the factory wheels are 15 x 7 and I don’t believe they made SSI’s in 15. I prefer the SSII/SSIII over the SSI wheel because they are uniquely Oldsmobile. SSI’s look like Chevy, Buick, Ford, Mopar wheels. Most of the 15 SSII/SSIII wheels will be snap on caps unless you find the ultra rare bolt on cap ones. Be expected to pay more for those.

 

The only factory sizes for SSII/III wheels are 14x6, 14x7, and 15x7. Anything else is aftermarket.

 

Sounds like if I find a set of 15's they will be 7 inch wide. Thats good news. Anything I should look out for with back spacing or will they all be the same?