Thread: tire size
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Old 11-29-2011, 08:09 PM   #9
Firebirdjones
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Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 2,396
Re: tire size

Quote:
Originally Posted by SamMargritz00 View Post
the way i've always been taught was 33's with 4 inch lift, 35's with 6, 37's with 8, etc. thats the way i've always done it with my vehicles.
I've always been one to see what works for myself. I guess I like to experiment

I did the 33's with stock lift, and it works great. I had heard of clearance issues but I tend to think there are other things going on that people may not take into consideration, and why it works for some and not others.

Possibly wrong backspacing on the wheels. Less backspace would kick the tires out further, and I could then see it might be an issue with the front fenders.

Possibly the 40 year old rubber body mounts and core support mounts are sagging with age or moving around under stress, causing fender clearance problems.

Possibly 40 year old springs that are sagging??

I took care of 2 of those things before I did the swap. First, I installed poly body and core support bushings (stock height) as well as poly bushings in front and rear leaf springs.
Secondly I made sure I had as much backspace as I could fit on the front. That turned out to be 3 3/8" in my case. Anymore backspacing caused interfearance with the outer tirerods.

I'm still running the OEM issued 40 year old leaf springs, so it's even possible that my blazer might be a tad lower than new.

Still the 33's clear with room to spare.
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