New to forum today and hope you guys can help.
I have 68 RS that I have owned for 20 years. I have had the same Keystone 14 inch aluminum center line wheels and tires on it for about the same amount of time. I would like to purchase some factory style rally wheels for it but would like to go to a 15 or 16 inch wheel. The car has drums all the way around. What is the back spacing of the rim I need to purchase and for the guys that are running the factory style of rally wheels what are you running? Thanks.

 

I have 15x5 on front 165/65, and 15x8 on back with 295/50. Backspace on back is 4.5 inches. This works out really well if you have air shocks in the back. It looks stock with a drag look.