Wheel and tire fitment

[ncyrider]

About to order new wheels for my 01 ST 4x4, the wheels I plan on getting are Pro Comp 15x8 with 3.75 backspacing. So does that mean they will stick out 0.75" (-19mm offset) compared to stock?

For the tires I might get the same kind/size I have now, BF Goodrich 30 x 9.5 R15. Will I need wider tires for the 8" wide rims, or are these ok?

I know this setup should work fine, and my ST has a torsion bar turn...no lift. With the wider stance, the front tires won't rub, correct?
I saw some sport tracs with much wider wheels/tires, so I know I'll be good.. but just wanna make sure before I buy everything.

 

[ncyrider]

Will they fit?

 

[OffTrac]

Wheels "should" fit and tires will be fine but I might would get a little wider tire for that wheel. I say should because I know the Cragar with those specs work since others have used them but I can't say that I remember for sure if anyone has used the Pro Comp in that size. Some steel 15" wheels won't clear the calipers.

 

[429CJ-3X2]

My '02 ST has 16x8" wheels with the stock size 235/70 tires. They were on it when I got it. I've not had any problems, but I would have been leery putting 235s on an 8" rim if I had done the buying myself. The combo is within recommended specs, though.

 

[ncyrider]

Cool...for the 8" wheels how wide should the tires be?

 

[429CJ-3X2]

Goodrich should have a something showing recommended rim widths for their tires.

 

[ncyrider]

Looked at BF Goodrich website, looks like it's saying 30 x 9.5 / 15 (All-terrain KO, what I have now on stock wheels) will work with the 8" wide wheels. And they also have 31 x 10.5 / 15. Which size would be best for the 15x8 wheels?
Because I'm not really sure if the 31's would rub at all, and the 30's might look a bit too narrow...

 

[upther]

I have 31 x 10.5 on my 15x8 wheels and they fit and look great.