'92 was the first year Suburbans that was new body style and IFS. The '90
3/4T 454 4x4 is many times better of a truck than the '92 and later. MUCH
cheaper to repair and maintain. Stronger, better handling, better riding(if
the springs and shocks are in good shape), MUCH cheaper to lift(either a
little or allot)...Just an all around better Vehicle. Depending on its
history, you might have to chase rust in the rockers, quarters, and the area
where the tailgate or cargo doors meet the floor. Most rust can be repaired
with parts from LMC or JCWhitney. The TBI 454 is not all what it could be.
It still has enough bottom end to move the 3Ton beast plus a huge pull
behind camper or big boat. With a set of heads, mild cam, headers, , some
intake and TBI upgrades, and a 3-4 inch single exhaust system, ALLOT of HP
and TQ would be unleashed.
Check the chassis, underbody, trans fluid, and drivability good.
I am planning on buying a very clean, low mileage, 1990 Suburban, ¾
ton, 4x4 454ci, other then usual towing stuff and gas mileage. I have a
few questions, opinions on TBI 454, what changed in 1992? Was it the
frame and are there any major benefits after 1992? Is the Chevy
Suburban a K2500? What is a V2500 a GMC? I have been looking up after
market mufflers for this model and there seems to little info on the
model with the big block.