924Board.org

[Far2Gone]

My rear tapered roller bearing is bad (016311375B) and unavailable. Once I removed the race end it has a part number of: KMH89410 stamped into it, and doing a search of that shows there is a Ford 9" race that shares the number, digging into that shows: Timken Pinion Bearing HM89443 fits that race end.
Or Rock auto shows to have the bearing (103250)?

Anyone have knowledge of these parts and if they would or could work?

[Far2Gone]

The Rock Auto bearing did not work. Nothing about the bearing would work.
Guess I'll try the Ford 9" race and see where I end up.

[924RACR]

Seems like you should be able to order the bearing directly by that part number, not to have to worry about using a car parts supplier...
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

[Beartooth]

I've had very mixed luck with RockAuto's part matching system; sometimes I find things I'd never have expected to get from them, sometimes it spits out garbage. The 924 is just the kind of car it'll be hit or miss on - being limited production, European, and having several running changes. Sometimes bearing supply houses are a good go-to (decent chance of striking out, unfortunately, but there should be no chance of getting the wrong part), or usually if you jam away long enough you can get the right thing online by matching up part numbers and/or dimensions. I'd be a little surprised if it'd match up to an SAE-sized bearing (interchanging with a Ford rear end), but if the numbers match... Also, keep in mind the bearing itself my fit the race, but not the shaft - I'd be very surprised if the shaft isn't metric, so I wouldn't take a chance without taking a caliper to the shaft - that's one thing you can do to keep yourself safe ordering from RockAuto.
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1980 931 diamond in the rough