70 RR tire size ?

Need to pick up set of rallye rims and tires for 70 RR 15"

What size do folks think look best? I know there was a thread here a while back but I cannot locate... what BSp?

Radial or bis ply?

Probably doing BFG Radial TAs

I like 235/60/15 on 7" rims front and 255/60/15 on 7" rims rear. If you go with 8" wide rear rims then the 275/60/15 is a nice look.

Thanks! ANy particular back spacing ?

4.5" BS for anything up to & including 8" wide 15" wheel.

Looks like the Wheel Vintiquies rims are 4.25 BS expect the 8" is 4.5..

Also... 7" brushed trim rings... ?

Sorry... new to this..dumb ?'s

Thanks! I like that idea!

The thing about back-spacing is whether the person measuring it uses the outermost part of the rim or the bead area. Either way, with the sizes you're considering, not a worry. I've run 15x8 Mopar steelies with 295/50s on the rear of a '68 Road Runner and it had plenty of room everywhere at stock height. I think it was member "mickm" that said the 295 size was too tight in his '70 Road Runner in a discussion we had, but that 275s on 8s were fine.

You will not likely find 15" (7" wide or 8" wide rim) brushed trim rings in the aftermarket. Pretty sure most if not all are polished.

Also, the paint finish on the aftermarket rims is not very close to original. I had mine painted in a more correct color.

Thanks! What about these..?
https://www.wheelvintiques.com/accessories/trim-rings/7-o-e-m-brushed-chrysler-trim-ring.html

Appreciate the help!! Hate to spend money and have to return...

If you do, be prepared to turn raised white letters toward inside of car with black walls out. TA's, particularly in larger sizes are notorious for the raised letters turning brown. There are threads on this forum discussing the issue.

How about Cooper Cobra? W

I used the Cooper Cobra - 15x7 road wheels from Specialty wheels, powder coated on outter rim and used factory brushed trim rings . . . tires are 235/60/15 all around . . .like look better than the 14 factory ones. Lots of room left to go bigger in the rear like others have said . . . .