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Old 07-23-2019, 12:07 PM   #4
Ski-me
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Join Date: May 2012
Location: Colo Springs, CO
Posts: 860
Re: 90 Suburban questions

Personally, you're not going to win a ton of races with it....that's just the nature of these trucks in this era. Yes, you can add a few things but at the end of the day, it's not going to be any substantial hot rod.

With that said, I do like what you've done and spec'd. Depending on the tire size, the 4:10 will be decent. The tranny will be the 3 speed instead of the rare, 4 speed found in 1991 only. Also, just because it's on the RPO list doesn't mean it's been swapped out. Check that out when you test drive it.

I run 35's with the TBI 350 and 4.10's on the K5. It's nice and decent movement. 4.56's would be better for me but don't want to do the cost. I also have a 4 speed OD.

I had a 91' 1500 suburban.....great truck! Actually bought it in Bellevue, WA.
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89' K5 Blazer, 2.5" lift, 35" tires
04' GMC Yukon XL, 3/4 ton, 8.1L
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