1" and a half spacer for a 31mm offset?

[mutant-x]

I wanna put a set of dale jr killer chrome wheels on my 96 4x4 blazer. It will be lowered with 18x8.5 front and 18x10 in the back The front backspace is 6.1 and the rear has a 7.1 backspace. With an 1" and a half spacer on the rear is that all I'll need? Using the backspace calculator it looks like the fronts will move outward and the rear will be close to center with a 31mm offset.
I know people beat this topic up but I want to be sure these wheels will fit before I spend the $850 for the set and I don't have any experience with putting big custom wheels on a 4x4. The blazer is going to be lowered 3" and have an LSx based 6.0 L with AWD transfer and front axle.

 

[Philntex]

Re: 1" and a half spacer for a 31mm offset?

I have a 2000 S10 Blazer 4WD autotrac, 6 liter, Magnuson blower, 3.73's on both ends. I'm running 2008 Corvette 8.5x18" wheels (fronts) on the front and rear of my truck. I'm using a 1" spacer in the rear to equal out the track.

These wheels have a 56mm offset (about 7" backspace)

 

[mutant-x]

Re: 1" and a half spacer for a 31mm offset?

Very nice! thanks for the reply. So just a 1" spacer in the rear only would work then right?

What are you using for headers/manifolds on the exhaust? I'm thinking I'll have to fabricate my own headers as I can't find any on the market for the 4wd's with an LSx. Looks like a cold air intake in the left front tow hook hole in the bumper.