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Thread: Differential Fluid Change
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09-20-2007, 02:32 PM #1Sr. Apprentice
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Differential Fluid Change
I plan on changing the differential fluid soon and was wondering if anyone had any suggestions, comments or thoughts that might be useful.
'96 Suburban 1500 5.7
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09-20-2007, 02:40 PM #2Legend
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One thing I like to do is remove the fill plug before draining (same thing applies to transfer cases and other things that have a separate fill plug). It would be real irritating to get it drained and then find out that the fill plug is seized/stripped and is going to take a great deal of effort to get filled.
'98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
'92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
"My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World
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09-20-2007, 02:58 PM #3Legend
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use the red RTV! just did mine last week
Dan
1999 GMC Sierra 2500 350 vortec
1967 Jeep M725 ambulance 230 tornado
1990 Cherokee Limited- 3 inch lift on 33's
...and every one of em has issues
If you have any questions or problems don't hesitate to send me or any other GMTC moderators a PM
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09-21-2007, 08:55 AM #4
Get some of the anti-grind fluid stuff. It comes in this decent-sized tube. It's techincally for posi-traction and like differentials, but it will help quiet the gears down most any differential, and also condition them for longer life etc. It took that tube of stuff, and 2 or 3 more containers of gear oil to fill my diff. Also, one of those fill-hoses you can get at autozone or the like are real handy. And of course, be forewarned, new gear oil is some of the foulest smelling things in the world. Oddly enough, old used gear oil doesn't smell too bad...
Last edited by Crawdaddy; 09-21-2007 at 04:51 PM.
Christopher
1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 194K miles
2005 Saturn ION-2 Stock 200K miles (In 6 years...ouch)
1982 Bronco, 1993 Bronco, 1971 M35A2 Deuce and a Half
There are 10 kinds of people, those who understand binary, and those who dont...
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09-21-2007, 04:12 PM #5Legend
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I had a really bad cold the week so I thought hmmm cant smell anything so...dif fluid change this week!
Dan
1999 GMC Sierra 2500 350 vortec
1967 Jeep M725 ambulance 230 tornado
1990 Cherokee Limited- 3 inch lift on 33's
...and every one of em has issues
If you have any questions or problems don't hesitate to send me or any other GMTC moderators a PM
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09-21-2007, 04:54 PM #6Jr. Mechanic
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make sure you scrape that old rtv really good before putting that cover back on!
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09-21-2007, 05:04 PM #7
preferably get the real gasget for the diff. They do exist! I got mine from the local AutoZone with no troubles whatsoever.
Christopher
1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 194K miles
2005 Saturn ION-2 Stock 200K miles (In 6 years...ouch)
1982 Bronco, 1993 Bronco, 1971 M35A2 Deuce and a Half
There are 10 kinds of people, those who understand binary, and those who dont...
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09-21-2007, 05:08 PM #8SpamAssassin
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Yes it smells like boiled a$$. Don't get any on anything you plan on keeping...
Originally Posted by Crawdaddy
Jamie
2007 Ford E250(Work van) (Ya, Ya, shut up!)
1996 GMC Sierra SLE 1500 5.7L/4L60E
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