Forum: Powertrain

casting number is 12551364 its a 6.0

I have a 2003 Avalanche Z71 with 373 gears and I am thinking of going to 410. Is there any threads on swapping the gears for 4X4 applications?

I recently have seen alot of ''Eristic gasket'' sets on ebay listed for 00-01 chevy 5.3l engines. I'm wondering if this gasket kit is the same as one...

I just put Mobil1 synthetic oil in my truck and was wondering how long you are going in between oil changes with syn, on conventional I was goin...

Is 145.4 degrees a good operating temp for my trans??

Which one will work better on my cammed 5.3 ie make more horse power up top 3500+?

Are there any grease points on the suspension on a 2WD 2004 Silverado? I'm getting ready to replace the lower ball joints, but didn't know if the...

First post guys, i have a 2005 5.3 joe gibb silverado, well i recently got an aluminum 5.3 complete for nothing. I was told it came out of an 06...

ok so we've all heard that the biggest we should go in a 5.3 rcsb truck is like 228 or so. My question is has anybody tried anything considered big?...

What cam would work the best for my truck? I have a 2000 regular cab and i tow a 20ft boat sometimes and i just want alittle more power. I am going...

What kind of RPM's are you 4.10 guys running at 70-80 mph? How bad did the 4.10's affect your fuel economy?

I see alot of ppl on this board have this set-up and I am looking into do this also. My ? is do u guys that have this set-up on your truck have...

How many guys are running true duals on their LS engine? I had always heard that these engines lose HP from true duals. Is that true? The reason I...

I have a 2001 5.3 Z71 stock... I just changed motor and wiring harness, motor turns over fine but wont start.. I checked the injectors and one side...

So my buddy's '94 C1500 has a blown engine now, and we're looking for as much help as we can get. We're going to be re-building it, and we're trying...

does anyone know if a gauge cluster out of a 2003-2007 nbs escalade, silverado ss will work in a 2005 silverado, when i say work i mean will it be...

This is going to sound dumb and I hate to even ask it. What is the small radiator in front of the big radiator? It has 2 lines going into the...

Well, this story is old around here, got a 65e that couldn't handle it. So now I'm in the pursuit of some good trans shop that attend...

I read the other guys thread and it is for a 4wd. Mine is a 2wd and I all the bolts removed and cant get it out. Any suggestions? :giveup:

i just put on an cai and custom exhaust, how long will it take the computer to adjust to these modifications, can i do anything to speed up the...