Forum: Powertrain

I was wanting to know what gears and what size rearend would be in a 99 Z71?? :duh:

This system will be over 100% efficient compared to about 80% for some other systems. The high pickup will located in the upper grill with a 3:1...

The servo cover has poped to one side and the snap ring is still in.It broke half the retaner off,from the bottom snap ring access point to the top...

Today was a good test for these Fans. I was in a stop light today it was about 102* AZ. So l look down on the temp and it was @ 250* HOT. and it was...

Looking to redo the exhaust on my truck. Currently have stock Y-pipe running a single pipe into a 2-chamber flowmaster and two pipes exiting at the...

Hello i'm just wondering how wide my rear end is in my truck its a 1997 Gmc sierra i was wondering this because i was trying to see if a 86...

Planning on getting some headers soon.....Gibson or Edelbrock....what do ya'll think or do you have a better idea. Thanks

Another buddy at work with truck problems!!! :help: It's a 2003 GMC Sierra Extened cab short bed 2wd with 5.3l automatic. He has a 6 inch RCD...

I was wondering im gonna be putting a cam around the 220 range, headers, and a nelson tune. But I was wondering about the intake manafold. Which one...

OK, this may sound stupid but I'm young(17) and a motorcycle guy, so I don't have much experience with 8 cyclinders. When I am idling my oil...

This is what I posted over on www.ls1tech.com. Seems to be working very well. http://www.ls1tech.com/forums/showthread.php?t=163466 :burnout:

I got my NELSON tune on wednesday, and everyday it gets better and better. Thank you ALLEN. However, now my tranny temps are about 30-40 degrees...

my truck makes a odd noise like a ringing or banging under the truck around the flywheel. When i put it in gear it gets more noticeable, and my...

I just changed the transmission oil & filter,how much fluid do I put in?

they seem to be the most recommended for hp/tq, but are they a good fit? do they need any BFH adjustments after install? and do they burn plug...

Everyone that has the 160 degree PowerStat . How do I remove air pockets, I lost the install sheet and Hypertech does not have them on there web...

First, which is better? Is one compatable with the other?

well, i been rollin one wheel peel since i got my truck and i finally got one of these here posi's..lol it rained tonight too, so that made it...

Anyone know the code for the 6.0? :help:

I am swapping a LS1 into my S10 pickup and have come across this problem. I had to use a LS truck oil pan because of how far forward the fbody and...