Announcement

**RustyNCa** · March 7, 2012, 03:34 PM

Originally posted by tbird430

About to be getting the rear axle overhauled on my '60 Bird.

Aren't our stock rear diff's like a Ford 8.75" instead of the more common 9"?

-Jon in TX.

No, they are 9" rear ends.

**tbird430** · March 8, 2012, 10:35 AM

REALLY?

Well, that will make buying a rebuild much more easy then.

Thanks,
Jon R.

**mattyel** · March 9, 2012, 10:08 PM

Also just on this are they a small or large bearing diff?

**Dakota Boy** · March 10, 2012, 08:11 AM

AXLE bearings are the larger size. Bearing # is 88128R. Oil seal # is 51098. Housing end gaskets are Fel-Pro #10720 (requires 4).

(is that what you were asking?)

**mattyel** · March 11, 2012, 04:57 AM

Yes that is great im looking at disk break kits for the rear and they ask for large or small bearing 9" diff and i wasnt sure. thanks for that.

**redstangbob** · March 11, 2012, 10:15 AM

Check out Kevin's site http://www.kevinstang.com/Ninecase.htm bearings are mentioned in the housing and bearing section. Good luck, Bob C

**tbird430** · April 3, 2012, 11:32 AM

Ordered everything last night from Summit Racing Co.

I'm now looking for a spider gear shaft. Ford base PN#4211 in our illustrations.

I'm sure they are available new, anyone have a PN# for NAPA or aftermarket parts store to start with??

-Jon in TX.

**KULTULZ** · April 3, 2012, 07:43 PM

The 58/60 RG size was 8.75". During the 60 or 61 model run, the RG size went to 9". Same housing.

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