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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#17274 07/05/2004 5:25 PM | Joined: Feb 2000 Posts: 5,228 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,228 | I just rebuilt my '37 gear box for the same reason. I found in the 29-49 parts manual a bushing listed for these boxes that helped with chattering or sticking. If you pull it apart it should have a 2" long steel spacer behind the sector shaft seal. It does nothing, I really don't know why its in there. The replacement bushing goes in place of this steel spacer to help support the sector out on the end. I replaced the other two bushings and added the third one. The small bushing in the cap is a odd size no longer made. I had to buy a oversized one and have it turned down to fit. The others are standard sized. I used a hand heald die grinder with paper sanding roll to custom fit the long bushing. I was really an easy job. Mine is just now starting to free up a little. It was pretty tight when I started, but I figured that was better than being loose.
I bought the bushings and seals from my local bearing supplier for less than $10.
Seal #11055 Chicago Rawhide (NAPA)
2" bushing #CB-1820-16
1 3/4" bushing #CB-1820-12
Joe | | |
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