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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.

Drive Shaft & Rear Axle

Hey all....I have noticed some fluid around the front of my rear axle where drive shaft enters. Not so much that its dripping its just visible on the housing. Is there a gasket or seal that is needing some attention & is this common for these beasts to regurgitate rear end fluid over time ? What is the difficult level in changing ?..... Any & All help is appreciated.
Read more : Drive Shaft & Rear Axle | Views : 93 | Replies : 1

Transmission Service

Need some expert info...2012 GMC Sierra 5.3 6 speed auto. Looking into to the future for a tranny service, maintenance schedule in owners manual states transmission fluid and filter service not required until 97,50 miles, I am only at 42,000. This seems a little out there to me or are these new trucks made this way. This is my first full size truck and any & all help would be appreciated. When I do get ...
Read more : Transmission Service | Views : 98 | Replies : 3

NNBS 4x4 drag in front driveside???

I hope this will be a easy problem for you guys and gals. I have a 2008 Silverado Z71 4x4. I just put the 3.5 RC lift on and replaced the CV axles and also the Ball Joints. After the lift ONLY when in AUTO or 4 wheel and ONLY when accelerating does it have a drag or vibration kinda feeling in the front driverside. I have gone over all the bolts and can't find ...
Read more : NNBS 4x4 drag in front driveside??? | Views : 101 | Replies : 2

Driveshaft yolk leaking

My 06 Sierra seems to be leaking from the drive shaft yolk.I thought it was my transfer case rear seal.But after changing it I noticed it was my yolk.Has anyone else had this problem?
Read more : Driveshaft yolk leaking | Views : 77 | Replies : 1

Burning smell for front wheel well

So when I got of my truck today I noticed this burning smell coming for the front so I open my hood and every thing is fine there. So next I crawed under my truck and noticed this oil coming out of the front axle cv joints and I was wining if anyone else has had this problem?
Read more : Burning smell for front wheel well | Views : 149 | Replies : 4

reverse shift clunk

About to buy a well preserved example of an 01 silverado 4x4 5.3 with 80,000 miles. Everything is clean and checks out great but I am converned with the trans. When shifting into reverse it takes a second, 1, and you will get a hard engagement with a slight clunk. Park to R, and Drive to R do the same thing with all other gears acting as they should. It is not a constant problem ...
Read more : reverse shift clunk | Views : 136 | Replies : 6

Max towing package 5.3 vs. 6.2

I am researching a new truck. I currently have a 2002 gmc crew cap 4wd duramax stick with 350k on it.
The new diesels get such poor mpg compared to what I have, I started looking at the 6.2 maxtrailer package.
I do pull a 24 ft enclosed race trailer at times, but we typically use our diesel pusher rv for that.

This would just be back up. The trailer would weigh 9000 lbs loaded ...
Read more : Max towing package 5.3 vs. 6.2 | Views : 113 | Replies : 2

1994 GMC Not shifting into 3,4 gear

I have a 1994 GMC 2 Door 4x2. It has a 5.7L 350 V8 automatic. I was driving down the interstate and suddenly my rpms went up like the truck was in neutral. This happened about 7 months ago. I noticed before that the truck seem to not want to shift out of 3 into 4th gear. It only did this when I took off fast. I never abused my truck before anyone says so. ...
Read more : 1994 GMC Not shifting into 3,4 gear | Views : 184 | Replies : 4

loud clunk heard from t case when put into drive or reverse loud clunk heard from t case when put into drive or reverse

So we had our first cold snap last week and my truck wasn't having it. Hit a patch of ice and got a little sideways. Heard a pop and clunk from underneath me. Now every time I go into gear reverse or drive I hear a loud clunk coming from the front half of the t case. 4 wheel drive low high and auto work. Driving down the road she is smooth and the trans ...
Read more : loud clunk heard from t case when put into drive or reverse | Views : 195 | Replies : 7

88 4x4 won't engage 88 4x4 won't engage

88,5.7 4x4 won't engage . Floor shifter, drive shaft turns and actuator extends. Looks like the rod actuator pushes on is stuck at it extended position or actuator is not extending enough.
Read more : 88 4x4 won't engage | Views : 144 | Replies : 3


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