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03-19-2013, 02:49 PM
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#26 |
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Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
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Re: Rear differential oil
mine didnt have a drain hole. Had to just crack the cover and let it drain.
The fill hole is the square bolt on the back. I had to use the extension hose/straw thing to get it filled. |
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03-19-2013, 02:49 PM
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#27 | |
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Registered User
Join Date: Jan 2013
Location: Mickleton, NJ
Posts: 1,776
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Re: Rear differential oil
Quote:
If the square plug in the back is about halfway up, that is the fill.
__________________
Shawn 1970 Chevy C-10 SWB, 350, TKO 600 5 speed My build http://67-72chevytrucks.com/vboard/s...d.php?t=559881 |
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03-19-2013, 02:50 PM
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#28 |
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Registered User
Join Date: Mar 2011
Location: Sumter SC
Posts: 439
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Re: Rear differential oil
I use Royal Purple,,,it's the good stuff..
my build http://67-72chevytrucks.com/vboard/s...d.php?t=468622 |
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03-19-2013, 03:10 PM
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#29 |
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Account Suspended
Join Date: Oct 2012
Location: Salt Lake City, Utah
Posts: 3,331
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Re: Rear differential oil
Thanks guys!
Posted via Mobile Device |
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03-19-2013, 04:55 PM
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#30 |
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Account Suspended
Join Date: Oct 2012
Location: Salt Lake City, Utah
Posts: 3,331
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Re: Rear differential oil
Got it all done. I just backed out the bolts a bit and then gently used a flathead screw driver at the bottom to open it up just enough for the fluid to drain, without hurting the gasket.
Boy, this 3/4 ton has one big rear end. Felt like I was working on Jennifer Lopez back there lmao. It took all but one quart of that gallon jug. Thanks for the tip for the pump, Gary. I got one at Autozone, and it made of a very clean job Posted via Mobile Device |
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03-20-2013, 09:51 AM
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#31 |
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Account Suspended
Join Date: Oct 2012
Location: Salt Lake City, Utah
Posts: 3,331
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Re: Rear differential oil
This video of a truck driving with a clear diff cover is what made me want to change my fluid ASAP. Glad I did. That old fluid was thick and nasty
http://m.youtube.com/watch?feature=y...ure%3Dyoutu.be Posted via Mobile Device |
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01-13-2016, 07:55 PM
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#32 |
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1972 C/20
Join Date: May 2005
Location: Santa Rosa, Ca
Posts: 273
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Re: Rear differential oil
My 1972 C/20 has a Dana 60 rear with posi in it and 3.75 quartz filled it.
This unit has floating rear axle, which require you to jack up a side to let some oil run down the tubes and lubricate the wheel bearings. Hopefully this helps... I thought this info would be easy to find, but I guess not all Dana 60s are the same... |
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01-14-2016, 12:37 AM
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#33 |
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1972 C/20
Join Date: May 2005
Location: Santa Rosa, Ca
Posts: 273
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Re: Rear differential oil
^^^ sorry to confuse...
2.75 was the actual amount of quartz needed. |
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01-14-2016, 01:33 PM
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#34 | |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: Rear differential oil
Quote:
That would be me! I just took it off and chunked it in the trash too! The thing kept leaking. It had cracked and was dripping. I put almost 2 bottles in it before it started coming out the hole.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71  Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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