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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#30367 10/06/2002 4:19 PM | Joined: Aug 2001 Posts: 154 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2001 Posts: 154 | ANYONE KNOW THE SEAL NUMBER ON AN SM 420?(YOKE SEAL). TRADED MY OLD 216 FOR THE SM420, WANT TO REPLACE THE REAR SEAL BEFORE INSTALLING. BELEIVE IT IS IN THE 47-53 VINTAGE.
The Amish Connection
51 Chevy 1/2 ton 5 window,Vortec hotrod, no horse
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#30368 10/06/2002 5:39 PM | Joined: Feb 2002 Posts: 22 Member | | Member Joined: Feb 2002 Posts: 22 | Check out the following, they will either have the part or know where to get it. web page | | |
#30369 10/07/2002 5:43 PM | Joined: May 2002 Posts: 44 'Bolter | | 'Bolter Joined: May 2002 Posts: 44 | I just changed one of these on my truck and found the seal at NAPA. NAPA part #: 22340. Only was about $9.00. The seal I could not locate was the paper gasket for the bearing retainer on the back of the tranny. RTV gasket goop worked good though.
"The Operation of GMC trucks is normally smooth and steady, with no loud rattling, knocking or unusual noises. A good driver will quickly become accustomed to driving a GMC truck and will get the feel of his vehicle regardless of his engineering knowledge."-TM10-1563
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#30370 10/08/2002 1:30 PM | Joined: Jul 2002 Posts: 358 Shop Shark | | Shop Shark Joined: Jul 2002 Posts: 358 | Zeker6, I am assuming you are installing this Muncie in an AD? What is your choice for a rear-end? | | |
#30371 10/08/2002 7:53 PM | Joined: Aug 2001 Posts: 154 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2001 Posts: 154 | Used a 78 Camero 3.42 with same (Camero)springs, and fabricated spring mounts. I was awaiting mounting trans to set the rear angle and weld spring pads to rear housing.
The Amish Connection
51 Chevy 1/2 ton 5 window,Vortec hotrod, no horse
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