86 SWB Wheels and tires questions!

[Tad.]

I've settled on getting these for the back: http://www.summitracing.com/parts/CRR-3975150SPEC/ and these for the front: http://www.summitracing.com/parts/CRR-3975850/

Questions! Will the 10 inchers fit on the back without a spacer? And is the backspacing 5 inches? I can measure I just don't have the right tool.

[Captkaos]

The note on the summit site says "requires custom offset information to order." for the back.
5" Backspacing will work with 10" wheels though.

[Tad.]

Thanks. I meant to ask if the 5 inch backspacing will clear my rear drums.

[Captkaos]

Backspacing wont matter concerning the drums, the inside diameter would.

[Tad.]

Okay, thank you! I have 15's on it now. Another dumb question, but I might as well ask while I'm here. The lug pattern is 5x5, right? I'm pretty sure that's what my manual said, but I left it at the shop.

[Captkaos]

5 on 5 is correct.