Rear end leaking
#1
Registered User
Thread Starter
Join Date: Apr 2005
Location: Minden, NV
Posts: 412
Likes: 0
Received 0 Likes
on
0 Posts
Rear end leaking
Just saw the oil spots on my driveway yesterday. I pulled her into the street and looked up to see oil all over the front of the rear diff. 12k on the clock. Anybody have a similar problem?
DK
DK
#2
Registered User
Join Date: Mar 2005
Location: minnesota
Posts: 486
Likes: 0
Received 0 Likes
on
0 Posts
look clesely it is probably not from the dif. It is from the breather hose coming off the motor. You just noticed where it gets caught. I went the the local auto parts house and baught an 18" long piece of 3/4" hose rated for oil and a hose clamp and attached it to the pipe coming down from the motor so that it leakes a little closer to the ground so it doesn't get caught by the rear dif.
#3
Registered User
Join Date: Sep 2003
Location: High River, Alberta, Canada
Posts: 775
Likes: 0
Received 0 Likes
on
0 Posts
Sounds to me like the rear diff pinion seal is leaking. This is the seal that seals the yoke from the driveshaft to the rear diff internals. You could try cleaning the area and monitoring over the next few days to verify if it is or not as you still have quite a bit of warranty left. You may also want to check your fluid level in the diff to make sure it is not low as well (if it is the culprit of the leak).
#4
Registered User
Thread Starter
Join Date: Apr 2005
Location: Minden, NV
Posts: 412
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by CRXsi
Sounds to me like the rear diff pinion seal is leaking. This is the seal that seals the yoke from the driveshaft to the rear diff internals. You could try cleaning the area and monitoring over the next few days to verify if it is or not as you still have quite a bit of warranty left. You may also want to check your fluid level in the diff to make sure it is not low as well (if it is the culprit of the leak).
DK
#5
Registered User
Join Date: Aug 2004
Location: St. Louis , Mo.
Posts: 293
Likes: 0
Received 0 Likes
on
0 Posts
These are the stoutest rears out there if you ask me ,same as on Chevy trucks but with bigger axle tubes . 22,000 on mine now with no leaks at all only complaint are these unservicable u-joints !! NOT a common prob as far as I know . Just tool on down to the smiling DC dealer and let them take care of it on their dime . I would check all the fluids as some have been under and overfilled ,mine were perfect but worth checking into . Welcome to Cummins land that beast still amazes me everytime I tow and just sounds so sweet with a good intake and duals .
Thread
Thread Starter
Forum
Replies
Last Post
Sasqoutch
3rd Gen Engine and Drivetrain -> 2003-2007
10
02-04-2009 12:38 AM
doorguy
3rd Gen Engine and Drivetrain -> 2003-2007
3
06-08-2007 06:19 AM