69 Chevelle Ss W/ 15x8 Weld Prostars, Want To Run Bfg T/a Radials 275/60/15. What Back Spacing Should I Have To Make These Work W/o Tires Rubbing Or Modifing My Wheel Lips.

I think 4 1/2" check the wheel and tire section there are a bunch of threads there

thanks Mike , thats what i was thinking too!! looked at all the threads no luck there.

I run a 4 1/2" BS on my 69 with a 275/50/15 Mickey Thompson Drag Radial with no problems at all. I hope this helps!

I run 8" rally's with 4 1/4" BS and 295-50-15's, although I did have to trim the top of my inner wheel wells some....