I'm thinking that if the BS on a 15 x 7 is 4 1/4" then on a 15 x 8 it needs to be 3 3/4". And that's what I've measured before.

67 satellite. Have G60-15 that need to get installed. I measured for 15 x 8 rims but thinking I might go to 15 x 7 just to be safe.

Let us know how it turns out.

67 plymouth satellite 72 plymouth roadrunner