9th Gen 2500 Suburban
I've been hunting around for a decent Expy this past week and ran across a 1997 2500 2wd Suburban with the 5.7L and 4.10 rear end. Going to take a look at it this weekend, but am having a tough time l...
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That is a GMT400, just like my 1996 K3500 7.4L
Made my own harness initially, but sold the boat/trailer and the new
owner insisted on the harness and modified receiver. So my receiver is
his old one from his GMT400 5.7L 3/4 ton
Here is the link to my HOW2 use the OEM harness and the modifications
I made to personalize it
1996 Suburban tow harness
The 4.1 and makes more of a difference with the small block...note
that going over sized tires will effectively reduce numerically that
4.1
GMT400's do have issues, but none that can't be fixed or adjusted
Brakes are not very good, but mine are very good after my modifications.
Mainly to lube the front caliper slide tubes/bolts and keep that in
good order. The front brake hoses do need changing at around 100K miles
Mine are stainless braided. Other is that the frame clips rust to
pinch off the hose. So make sure the frame clips are not rusty.
Rear brake self adjusters don't, so expect to manually adjust them
often. Mine need adjusting every 2K miles or so
Have performance (race) friction materials, but note that they don't
have much braking when cold. Can out stop most vehicles out there on
dry and good pavement
Assume the previous owner(s) have changed out the intake manifold
gaskets. Very poor design and the new ones very good. Felpro is my
fav, but the OEM is also good
This era small block does do well with intake and exhaust mods
I do NOT advise tuners, as they consume margins.
I've made my own cold, ram air intake and other simple mods and is
spelled out on this thread: Chevy 454 maintenance
good luck
Made my own harness initially, but sold the boat/trailer and the new
owner insisted on the harness and modified receiver. So my receiver is
his old one from his GMT400 5.7L 3/4 ton
Here is the link to my HOW2 use the OEM harness and the modifications
I made to personalize it
1996 Suburban tow harness
The 4.1 and makes more of a difference with the small block...note
that going over sized tires will effectively reduce numerically that
4.1
GMT400's do have issues, but none that can't be fixed or adjusted
Brakes are not very good, but mine are very good after my modifications.
Mainly to lube the front caliper slide tubes/bolts and keep that in
good order. The front brake hoses do need changing at around 100K miles
Mine are stainless braided. Other is that the frame clips rust to
pinch off the hose. So make sure the frame clips are not rusty.
Rear brake self adjusters don't, so expect to manually adjust them
often. Mine need adjusting every 2K miles or so
Have performance (race) friction materials, but note that they don't
have much braking when cold. Can out stop most vehicles out there on
dry and good pavement
Assume the previous owner(s) have changed out the intake manifold
gaskets. Very poor design and the new ones very good. Felpro is my
fav, but the OEM is also good
This era small block does do well with intake and exhaust mods
I do NOT advise tuners, as they consume margins.
I've made my own cold, ram air intake and other simple mods and is
spelled out on this thread: Chevy 454 maintenance
good luck
