Backspacing/offset for 15x10 rim

1988 caprice classic 4.3 with Ls swap stock rearend and suspension...wanting to fit a x275 tire 275 60 r15 with a 15x10inch rim that fits nice clean flush and tucks under the finder well so I can get maximum rear end squat for traction without as much scrubbing as possible...does anyone here have info on the correct backspacing/offset to achive this as best I can, any and all help is greatly appreciated thanks...if possible, pictures would be nice also thanks again

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this is a 15x10 5" bs wheel.   from what i can gather if you go 15x10 it needs to be a 4.5" bs wheel, if using factory width rear end thats what im currently doing with mine. i need to be able to clear a bead lock without cutting into the body or any kind of trimming

Hey man i told you wrong its 5.5" off set not 4.5!

sorry for some reason I never got any notifications to pop up and let me know u replied, thanks for the info, nice ride, love the two doors...so u meant 5.5bs would give me what I'm looking for or 4.5bs

GbodyDrag wrote:sorry for some reason I never got any notifications to pop up and let me know u replied, thanks for the info, nice ride, love the two doors...so u meant 5.5bs would give me what I'm looking for or 4.5bs

Hey thank you, and is yours a b body or g body? If it is a 15x10   and a b body 5.5 or 6.5 should work. The 6.5 may need spacers depending on which ever tire you decided to use. But im ordering 5.5 or 6.5  

Remember as you do deeper with the back space (axle side) barrel of the wheel on the outside (street side) gets shallower. I was thinking backwards before

Turns out the 5.5" bs works the best. have over 1" of frame gap with a 15x10 but thats with a 28 10.50 DR not a 275/60/15 which i dont care who you are, the 275 is wider..

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