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Broken Diff Cover

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Old Dec 2, 2004 | 03:40 PM
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Default Broken Differential Cover

Helo,
Didn't want to start this again, but I put 72 up for winter to do some detail on back suspension and planed on replacing spring and noticed nubs broke on diff cover.

I researched all of the threads on this issue, and spring replacement procedures,(and there were many) but I do not think I got a clear understanding if it is possible to replace the cover without droping diff.

Thanks

Last edited by 72-LT1; Dec 2, 2004 at 04:21 PM.
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Old Dec 2, 2004 | 04:21 PM
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Very common problem. Happened to me. You can replace it without dropping the differential as I have myself. Get a heavy duty replacement one from any number of vendors...

Bry
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Old Dec 2, 2004 | 04:23 PM
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So you were able to get the cover off, did you take off the cross member and cover in one piece?, I know it will be tight but I will give it a try.

Not allowed to spend any more money until Jan, since I just bought the car, But I am dropping tank as well and will start spraying the bolts
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Old Dec 2, 2004 | 04:25 PM
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Yep all as one peice. Crossmember can be a pain in the *** sometimes because of the bushings pressed into the frame

Bry

EDIT: Just saw it was a '72, mines a '77 but im almost positive its the same. Someone correct me if I'm wrong
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Old Dec 2, 2004 | 04:33 PM
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Get the car high enough on the jackstands - you'll need another jack to support the differential...
Then be careful with the spring - use c-clamps so that the jack (yes, another jack) won't slip... once the spring is removed unbolt the cover from the differential (place a drip pan under it) and loosen the crossmember bolts so that can be lowered...

You'll regret using jackstands that are too low, don't buy the $12.99 2ton jackstands from Delco (I have these, these are not high enough and flimsy) ... get at least the 4ton ...

It's not that big of a PITA ... it's a nice weekend job...
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Old Dec 2, 2004 | 04:36 PM
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Why the jack under the diff? I didn't do this, hope i didn't bend anything


Bry
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Old Dec 2, 2004 | 04:41 PM
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Originally Posted by Bryan8412_2
Why the jack under the diff? I didn't do this, hope i didn't bend anything


Bry

Just as a precaution, the differential is only held in place by the front bushing and bolt after the cover is unbolted.... ok, it's also connected to the driveshafts... but better be safe than sorry...
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Old Dec 2, 2004 | 05:35 PM
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You can do it on the car but it's harder in my opinion. The differential will be supported only by the front bushing which isn't enough. Check your side yokes too as this is a good time to check them for endplay.
Good luck,
Gary
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Old Dec 2, 2004 | 06:58 PM
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Thanks to all, I have 2 wks until off to Hawaii to tear it apart.
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Old Dec 2, 2004 | 07:02 PM
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Originally Posted by gtr1999
You can do it on the car but it's harder in my opinion. The differential will be supported only by the front bushing which isn't enough. Check your side yokes too as this is a good time to check them for endplay.
Good luck,
Gary
Good point! I found a big surprise when I pulled mine
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