Hello all,

I want to replace my cutty's wheels.
Because I like my cragars now, I want to to replace them for new (without rust...) ones.
I'm looking for the right backspacing.
I drive a cutlass salon 1975.
tires front: 235/60/15
tires rear: 255/60/15
Do I need for an 8 inch the BS 3.75 or 4.47 (positive offset) or both???

I hope to read something

Wally