what you all suggest for back spacing on my jk with teraflex 2.5 coil lift and poison spyder flat flares??

 

4.5 inches is what is recommended for 35x12.50 tires to keep from rubbing frame rails etc.

 

So should I go lower for 37's or should 4.5 be fine!?

 

depends on tire width

 

X2... I run 35x12.50 with 3" of back spacing. I run 1.5" spidertrax and my rims are 4.5". If your going to be running a 14.50 wide tire, I'd suggest a lower BS..

 

I'm going to run 37x12.50r17 tires so I want to know what's the most perfect??

 

As posted...4.5" BS is the minimum and you may still have some rubbing on CA's at full lock. You could go with 4 or 4.25" BS, it would just push the outer edge of your tire out a little...your choice. The wheels you want may also dictate what BS choices are available.

 

I am wanting the Mickey thompsons classic lock 17x9 with 4.5 would that be fine with this set up??