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Re: Clutch pilot bushing vs roller bearing
baldilocks #1351467 Tue Mar 24 2020 07:50 PM
Joined: Oct 2018
Posts: 49
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Wrench Fetcher
The one in my truck looked just like that. It was an NDH.

Timken, SKF and others offer the same bearing - although they are not made in the US.

Not sure how accurate it is, but if you pull up the "applications" for these on a site like Rock Auto, you get hundreds of hits ranging from like 1936 Buicks to 1979 Pontiacs, with a few Internationals and Kaiser-Frazers thrown in as well.

However, wonder if this means this bearing was originally used in all of these vehicles, or rather could have been used originally, or as a replacement for the bushing?

Best Regards...

Re: Clutch pilot bushing vs roller bearing
baldilocks #1351483 Tue Mar 24 2020 10:12 PM
Joined: Jan 2001
Posts: 4,946
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Shop Shark
That 7109 bearing was only used up to early 1939.
It has a much larger OD than the bushing.


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Re: Clutch pilot bushing vs roller bearing
tclederman #1351594 Wed Mar 25 2020 03:30 PM
Joined: Jan 2001
Posts: 4,946
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Originally Posted by tclederman
31-39 for the bearing?
33-46 for the retainer?

1931 to early 1939 used the 7109 ball bearing (1.379"OD x .593" ID).

Late 1939-46 used a roller bearing(GM part #142655, Hyatt#99004).

The retainer (GM #836713) was only used with the roller bearing.

(This roller bearing/retainer setup was also used on 1933-34 Standard, but this is a truck forum).


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