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Timken or SKF 489 rear pinion bearing part number?


FBBO Gold Member
FBBO Gold Member
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4:49 AM
Jan 28, 2012
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Can’t find anything on these damn on line catalogs and web site for a 50+ year old car. Anyone have the part number for the rear pinion bearing for a 489, 8-3/4 differential?

I haven’t tried them or Parts Geek. Maybe I can find it on one of them.

Timken has been bought out by someone else, Koyo owns them. Summit still had some Timken bearings last summer.
I'd contact Cass aka Dr Diff. He'll have the Timken bearings. I don't see pinion bearings listed in his online catalog but I'll guarantee he has them. They will be priced right and shipped in good time. Email or call. Info here...
if you need part numbers or differential rebuild parts go to Ratech Manufacturing website , they list Ford , GM , Chrysler , Dana etc. bearings , shims , crush sleeves/ solid spacers , wheel bearings, seals - i use it for reference all the time. part numbers are large bearing/race M804049 / M804010 ,,, small bearing at yoke M88048 / M88010
Go to rock auto and enter the vehicle and there will be several choices depending on you application
I do the same thing.. rockauto is awesome... sadly i pull part numbers there and then buy the parts on amazon as i get 500-800 a month in free amazon points :( I just wish more parts for my car were sold on there :)
In case anyone needs this info in the future, here is a list off an old Moparts thread.

8 3/4" 3rd member bearings.

741 case
Differential 57-early 69: 25590/25520
Differential Late 69-74: LM104949/LM104912
Pinion inner: HM89446/HM89410
Pinion outer:M88048/M88010
Seal: 8515N

742 case
Differential : 25590/25520
Pinion inner: HM803149/HM803110
Pinion outer: HM89443/HM89410
Seal: 7216

489 case
Differential: LM104949/LM104912
Pinion inner: M804049/M804010
Pinion outer: M88048/M88010
Seal: 5126