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Transmission and drivetrain related components. Discuss automatic and manual trans repairs and performance or talk about driveshafts or rear-ends and differentials. Diagnostics of 4-speed, 5-speed, or even 6-speed transmissions.

Should I be concerned with this?

Wetness in rear differential? Should I be concerned by this or is this normal? 74300 miles
Read more : Should I be concerned with this? | Views : 78 | Replies : 2

NP 263 vs. NP 246 rear case

We are having an issue. Our transfer case got torn up last fall. We've been buying parts for our rebuild and purchased what we were told is a NP 246 but that it would work with our NP 263. We have assembled everything and would be ready to fill it and connect to the truck. But the seal kit I got doesn't seem to be the right fit for the rear seal on the transfer ...
Read more : NP 263 vs. NP 246 rear case | Views : 39 | Replies : 0

2005 4L80E - Barfing between transmission and transfer case

Hello, have a 2005 GMC Sierra 2500HD with the 6.0 LQ4 and 4L80E trans 4X4 - It has a massive leak between the rear of the transmission and the transfer case. Common problem? What should I be replacing? I am familiar with the dreaded pump rub on the tail section of the transfer case but this isnt the case. If I had to guess id say the trans output seal & gasket should be replaced. ...
Read more : 2005 4L80E - Barfing between transmission and transfer case | Views : 33 | Replies : 0

Truck won't shift gears

I have a 1997 Chevy 1500. Switched the transmission the old one was bad. Now when driving the truck, which is automatic, won't shift gears. You get about 30 mph And it revs really high, stomp on it and it'll go down a little bit but then it never shifts your rpms just keep going higher. Thought it was the output speed sensor so I changed that but it didn't make a difference. Any ideas?
Read more : Truck won't shift gears | Views : 47 | Replies : 0

Intune and Transmission Thud

A friend of mine finally got an intune and we went riding last night to see how it acted. He slammed it and it shifted hard, like a thud shift from 1st to 2nd...is this normal? I told him maybe he shouldn't do that and wondered how much damage he's actually doing to the transmission. He's running the 87 octane with firm shift.

Read more : Intune and Transmission Thud | Views : 178 | Replies : 10

G80 locker, traction control, and stabilitrac

OK, I think I have a pretty good grasp on the functioning of the G80 Locking Transmission. I don't really understand the intricacies of how it works, but I understand what it does. Same goes for Stabilitrac and Traction control. But my question is, how do each of these three systems work together. It seems to me that one system might conflict with the function of another on the fly. And if off roading would ...
Read more : G80 locker, traction control, and stabilitrac | Views : 133 | Replies : 2

4.3 w/3.23 gears what to do?

I am relatively new to the truck world and everything that goes with it. I bought a 2011 4.3 2wd single cab short box wt and love it( it does it has too). I installed a level and got some slightly larger all trarain tires. The truck is definitely under powered, and a little frustrating driving up large hills. I'm not sure what kind of mpg I'm getting but I'm sure it's not great.
What ...
Read more : 4.3 w/3.23 gears what to do? | Views : 205 | Replies : 9

3.73 --> 4.11 Worth it?

Thinking about stepping to a 4.11 gear mainly to restore some city MPG after the wheel/tire swap, and to turn the tires over a little easier haha. Think this will be worth it? I don't want to go any lower and lose highway mileage. I imagine a 4.11 will put me a tad lower than factory specs with the original wheels/tires, but not enough to kill highway mileage.....might even gain 1 back or so? Anyone ...
Read more : 3.73 --> 4.11 Worth it? | Views : 154 | Replies : 2

2014/2015 K2XX Vibration Buyer Beware

Hello all,

This is my first post and the issue I am having with my 2014 Silverado High Country is what has prompted me to seek outside help and come across this site. I REALLY need your help, please read. A little backstory:

I bought my Silverado in October of 2014 from Quirk Chevrolet in Boston (Great Price). On it's maiden voyage home (i live 100 miles west of Boston) I could feel a vibration ...
Read more : 2014/2015 K2XX Vibration Buyer Beware | Views : 436 | Replies : 13

Replaced CV Axles... Now Light "growling" from Front End

Just replaced both CV Axles and Front Struts this past weekend. The job went smoothly with the help of my 11 year old son chasing tools for me. Drove the truck to work on Tuesday and I hear this "growling" noise from the front end of the truck. I double checked all the torque on all of the bolts and axle nuts when I had completed the job this weekend. This is kind of frustrating ...
Read more : Replaced CV Axles... Now Light "growling" from Front End | Views : 64 | Replies : 1


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