Rear end fluid
Thread Starter
Intermediate
Joined: Aug 2010
Posts: 45
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Rear end fluid
Im getting ready to change the fluid in the rear end(pumpkin). Never done this before, Any information on how to do it and what fluid to use would be appreciated. I love this site! Thanks in advance! Steve
Racer
Joined: Dec 2007
Posts: 312
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From: San Antonio Texas
But, as far as what fluid to use, I go to the dealership, and use the GM fluid and additive.
Good luck!!
KW
Team Owner
Joined: Sep 2003
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From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
There is a filler/drain plug on the right side of the case.
You will need to suction out the old fluid. GM did not provide a bottom plug. (search & you'll find the mod here)
Using the GM LSD additive is a requirement. Those here on the CF will tell you to double the dose for best results.
As far as what lube to use, its your call. Synthetic or dino both work well.
You will need to suction out the old fluid. GM did not provide a bottom plug. (search & you'll find the mod here)
Using the GM LSD additive is a requirement. Those here on the CF will tell you to double the dose for best results.
As far as what lube to use, its your call. Synthetic or dino both work well.
Last edited by JrRifleCoach; Apr 11, 2013 at 07:26 PM.
Pro
Joined: Sep 2012
Posts: 610
Likes: 12
From: Seattle Wa
If you're not gonna pull the rearend, then you need to locate the fill plug on top of the pumpkin, and get a pump for filling, and use it the other way first, and pump out the old oil, then refill with new. h
Melting Slicks
Joined: Mar 2008
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From: Delta B.C. Canada
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The fill plug is on the passenger side of the pumpkin, near the top. It probably has an aluminum tag attached to it.
Heel & Toe
Joined: Nov 2012
Posts: 23
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From: Bay Area Ca
I just changed my fluid and I used Mobil 1 75-90 synthetic and one bottle of GM additive. Everything seems to be working fine. I used a fluid pump to remove the old fluid and put in the new. I would suggest covering your exhaust pipe with some aluminum foil to keep any gear oil from dripping on it.
