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| | | Forums66 Topics128,080 Posts1,056,062 Members48,433 | | Most Online14,466 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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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Nov 2009 Posts: 29 'Bolter | | 'Bolter Joined: Nov 2009 Posts: 29 | So I bought a differential for my 1950 truck off a guy on Craigslist. Its the Ford 9 inch style, where it removes from the front (basicly torque tube style but with a normal driveshaft). Anyway, the pinion seal is junk, and when I look the seal up on Napa it lists it for 2-3 different axles.
The only things I know about the truck are that its a 1/2 ton, and supposedly a 1960, however the ring gear says 1962 on it. Gear ratio is 3.90 and the only number on the seal is 3776800 K which comes up with nothing on google. Anybody know which axle this was from?
Edit: Napa lists seals for:
Comments: w/ Spicer/Dana 44 Axle Comments: 1st Design;w/ H033, H035 Axles Comments: w/ Spicer/Dana 60, 60-35 Axles;.531" Width Comments: w/ Spicer/Dana 60, 60-35 Axles;.770" Width
-Nick
Last edited by Nick_R_23; 01/22/2010 6:38 AM.
1995 BMW 318i 1988 Chevy Silverado 4x4 1967 Camaro 1950 Chevy 3100 pickup
| | | | | Joined: Jan 2008 Posts: 69 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2008 Posts: 69 | Nick,
Dana axles were available in these trucks, LMC shows them as the posi-trac axle. But if the chunk comes out the front like a Ford 9", then it's not a Dana. It's probably the Eaton axle. I did a little digging and found that pinion seal number on the National seal cross reference. Just had to drop the K at the end. National shows it as a GM seal and crosses it to their 6818. They show that seal to fit '53-'62 with the HO33 and HO35 axle. Hope that helps.
TruckNut
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| | | | | Joined: Nov 2009 Posts: 29 'Bolter | | 'Bolter Joined: Nov 2009 Posts: 29 | They show that seal to fit '53-'62 with the HO33 and HO35 axle. Hope that helps. So then it looks like the 2nd seal listed on their site is the one I need, the 1st design one. Thanks for your help! -Nick
1995 BMW 318i 1988 Chevy Silverado 4x4 1967 Camaro 1950 Chevy 3100 pickup
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