WILL A 15X8 4.5 BS WORK ON THE REAR

charlief1

RIP Charlie!
Jack the car up and put jack stands under the rear end. Take the whee;s off and use a straight edge and a tape to see how much room you have.;) It may work depending on the tire used.
 

COOPER12

Member
will do. what got me thinking it may though.
Detroit wheels Grand National 15x8" 4" b/s with a -12mm offset ( -12 equals about .47 " )
looking at some 15x8 164p's 3.75 b/s with a -19mm offset (.748" )

they also have a 15x7" 3.68 b/s with a 9mm offset ( which is .35 " ) which would be for the front
 

COOPER12

Member
may just go with some American Racing Ansen slot repo's look pretty nice polished . never seen them on a regal but I like the more vintage look.
 

Slow91z

Turbobuick.com Helper
Staff member
4" BS is perfect. 4.5 needs a small spacer. 3.5 needs the lips rolled and the rear up in the air.

Depends on your tire and drums. 4.5" bs with a aluminum drum fits with 275/60, iron drum they touch and could use a small spacer.

This is assuming the body is straight on the frame which as we know isn't always the case.
 
C

coach

Guest
will do. what got me thinking it may though.
Detroit wheels Grand National 15x8" 4" b/s with a -12mm offset ( -12 equals about .47 " )
looking at some 15x8 164p's 3.75 b/s with a -19mm offset (.748" )

they also have a 15x7" 3.68 b/s with a 9mm offset ( which is .35 " ) which would be for the front
Why are you adding the offset to the backspace? The backspace is from the rims edge to where the axle will sit. It's a fixed number. Nothing to add to it. If it needed 9mm added to it...it would be listed as such.
As for the American Slots...I run the 5 window ET Racing high/ low angle rims. Very vintage looking. 3.75 backspace.
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