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Joined: Feb 2002
Posts: 1,178
ChatMaster - 1,000
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OP
ChatMaster - 1,000
Joined: Feb 2002
Posts: 1,178 |
I have a manual 3 spd transmission that I picked up for nothing, the casting number shown on the case is 691747 GM with a number 48 or 49 directly under it. I have searched the archives but find nothing on transmission casting #s. I need to know if some of the internals will fit my 52 manual.The way the transmission mounting holes are located indicates that it is pre 52 at least.
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
You are reading the number incorrectly--its 591747 and is the case casting number for a 1949-54 passenge car 3 speed transmission.Should look like the case for your 1952 except the rear extension will not have the drilled and threaded bosses for the mount.  All internal parts are the same--only the rear ext. if different.
Gene Schneider
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Joined: Feb 2002
Posts: 1,178
ChatMaster - 1,000
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OP
ChatMaster - 1,000
Joined: Feb 2002
Posts: 1,178 |
Thanks Chev Nut. I am in the process of doing a rebuild on my 3 spd, very noisy second gear. Will probably go for new parts but at least now I know I have spares if needed.
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