Forum: Powertrain

Is Dexron VI transmission fluid a dealer only item.This fluid is called for in my owners manual and I hear it is for 2006 and new GM vehicles, I have...

im at work right now but i will be swapping my 3.42 & open diff for a set of 3.90 and a true trac when i get off, probly gonna start about 2p.m. ...

1) on the 1996 gmc 1/2 ton if your facing the engine which is inlet and which is outlet? 2) On the 03 5.3 engine the only vacuum line is the one...

Do they make some alternatives to the old oil fill cap and neck. I broke mine somewhere along the way and would like to replace it with a better...

I haven't searched that hard yet, but I'm just wondering if anybody knows who makes adjustable rear shocks for out trucks, or a shock that is softer...

Looking at this spring compression tool wondering if it worth it or if there is a better or still quality and cheaper one. Here is the one I found ...

Can anyone recommend a good set of valve springs for a 4.8L? Preferably a set of springs that can handle about 11 pounds of boost.

:confused: Will the G5X3 cam fit in an 5.3 without modding the heads, pistons or anything else? Ive decided this is the cam i want and want to know...

Wooooo got it out finally, let my roomate, a certified GM tech get in there, i took everything apart, and put it back together, he did the welding. ...

Anyone know of a comparison between a 5.3 stock vs a 5.3 with an LS1 cam? Just curious what a person might expect, as that cam is all over ebay...

I have an ext cab truck with the two piece driveshaft in it and I was wondering if it would be benificial to change it to a one piece one in it...

So like my sig says my truck is a z71...didn't want a 4x4, but in wisconsin snow is horrible at times like 99sierra4x4 can tell you. So I bought it...

Well I was out of town last week and I left my truck with my girlfriend and I get a call from her saying the A/C quit working...I got home and sure...

Im thinking about gutting my cats on a stock 5.3. Could anyone tell me the pros and cons on doing this. Will it be loud with a super 40 flow. And if...

I'm working on a 408 build for my tired 4.8 tsp iron sb, -10cc diamonds prc 2.5 cnc'd 5.3's. using the stock 4.8 manifold, throttle body and...

Does anyone make lifters to replace the Active Fuel Management ones?

Did the "free" 1/2 drop on my truck yesterday. I include the "" because its not exactly free since I paid about $50 for the shorter U-Bolts from...

ok well im looking for some new fuel rails for my 6.0 do you guys have any suggesions and where to them