Rear diff

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Dec 11, 2011 | 10:50 AM

axel 56

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Rear diff

How do I tell witch Diff is in my truck 97 4x4 HD ext cab with 4.10 gears and ltd slip. Need to replace the diff cover .

Dec 11, 2011 | 11:06 AM

fordpride

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From: Livoina,La

sterling 10.25

Dec 11, 2011 | 11:13 AM

axel 56

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thanks for that I only want to buy one cover

Dec 11, 2011 | 04:07 PM

ckal704

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From: Lancaster County PA

Ford sells a nice one for SuperDuty (same rear). Finned aluminum and relatively inexpensive when I bought mine a number of years ago. Bolts right onto the OBS rear. You'll need to buy some new longer bolts as the originals aren't long enough due to the thicker flange on the aluminum cover. I am thinking mine was something like $29 - $39.
Of course aluminum has gone up since then, so I won't guess the price. Looks great! and a boatload cheaper than expensive aftermarket diff covers.
Can't remember the details, but I sure someone here remembers. Search diff cover and I am sure you'll find the thread.

Searched for ya. Here you go:
https://www.ford-trucks.com/forums/6...ver-cheap.html

Last edited by ckal704; Dec 11, 2011 at 04:10 PM. Reason: added info

Dec 11, 2011 | 04:51 PM

DIYMechanic

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From: Orrville, Ohio

I need to replace mine too. It has developed a small pinhole up towards the top and is wet with oil. Fordparts.com shows that cover to be $69.65 now. Might just be worth it though versus the $30 for a stamped steel unit. Anybody know how the aluminum ones hold up to road salt?

Dec 12, 2011 | 01:02 AM

maverick1701

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From: Lubbock, Texas

I ran one of these guys on my OBS with great results (and pulled it off before I sold it....saving it for my next OBS).

Ford Sterling Cover - Differential Covers - Spyntec Industries LLC.

They have a lifetime warranty and are pretty dang tough but they cost more than the OEM ford one. I bought mine when they had some sale for $35 or something crazy cheap