Changing rear differential
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Post Fiend
Joined: Feb 2004
Posts: 5,378
Likes: 3
From: nebraska
Changing rear differential
Ok guys have any off you did this. I was going to change mine soon but was just curious the proper way to do it.If I remove the differential cover is there anything I should look for when changing the oil. Thanks everyone for any help
Hotshot
Joined: Jan 2008
Posts: 13,144
Likes: 11
From: Rochdale MA
Here are a couple of links that you'll find useful:
Welcome to guzzle's Rear Differential Maintenance Web Page
Roadside Help Network - Guides, Maintenance & Mods
Welcome to guzzle's Rear Differential Maintenance Web Page
Roadside Help Network - Guides, Maintenance & Mods
Lead Driver
Joined: Dec 2006
Posts: 7,092
Likes: 145
From: San Diego, CA
I used Guzzle's writeup and it went fine. Definitely let the gasket material skin up for 1/2 hour before you put the cover back on and wait as long as you can to fill the pumpkin so that the gasket has time to set.
I would also re-check the torque on the bolts a little ways down the road. I changed to the '08 rear cover and developed some weepage about a month later. I re-torqued the bolts and the weepage stopped. Only a couple of drops hit the ground but the small stain on the diff cover got noticeably larger over a few day span until I crawled under there with my torque wrench and put an end to the fluid's escape.
BTW I used Mobil 1 synthetic gear oil and didn't have to add any friction modifier for my LS.
I would also re-check the torque on the bolts a little ways down the road. I changed to the '08 rear cover and developed some weepage about a month later. I re-torqued the bolts and the weepage stopped. Only a couple of drops hit the ground but the small stain on the diff cover got noticeably larger over a few day span until I crawled under there with my torque wrench and put an end to the fluid's escape.
BTW I used Mobil 1 synthetic gear oil and didn't have to add any friction modifier for my LS.
