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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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| | | | Joined: Feb 2007 Posts: 435 'Bolter | | 'Bolter Joined: Feb 2007 Posts: 435 | I've been trying to get the rear tail shaft oil seal replaced in my 64' with the 230 and 3 on the tree, and when I took it out, it didn't come out nearly as clean as I was hoping for. My parts person can't find it in her books, and without a number to go by and the old seal in such bad shape, we can't size it for a new one. Does anyone happen to know the part number for the new seal? Appreciate any help with this.
Tramp | | | | | Joined: Apr 2005 Posts: 2,101 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,101 | The seal number is 8850. It is common to 3 speeds, 3 speed OD's, TH350,& Powerglide.
Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
| | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy Tramp, the standard duty three speed (four bolt side cover) o.e.m. p/n for the rear seal is 3871649 = Napa NOS15041, or National 9613S
the heavy duty three speed (more than four bolt side cover) o.e.m. p/n for the seal is 3769588 = Napa NOS22340 or National 471341, hope that helps. | | | | | Joined: Feb 2007 Posts: 435 'Bolter | | 'Bolter Joined: Feb 2007 Posts: 435 | I appreciate the shout on the part numbers. I gave my parts gal a call and she has several on the shelf so it looks like I need to get out today and get to town. Thanks again. | | |
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