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| | | Forums66 Topics128,157 Posts1,056,892 Members48,458 | | 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: Oct 2007 Posts: 397 Shop Shark | | Shop Shark Joined: Oct 2007 Posts: 397 | Can someone please instruct me on how to service (not remove/rebuild) a vintage 1946 three speed manual transmission? I have never done this before and need to find out how one checks the lubricating fluid, where the access points are for servicing etc. I don't have a clue at all of what I'm looking at. I think the unit is OK by the way it works, but until I mess around with it I really won't be able to tell just what condition it truely is in. I really don't want to pull it if I don't have to. Seems to function alright, just sounds a bit noisey but that could be the nature of the beast. Any helpful tips to guide me through this will be greatly appreciated.
"Lucille" ..... Proud Member of the "Southern Stovebolts" David Wolff 1946 Chevy 1/2-ton In the Gallery | | | | | Joined: Sep 2003 Posts: 324 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 324 | There should be a square pipe plug about half way up on the passenger side of the tranny. Remove that plug and fill with 90w gear lube until it starts running out of the plug hole. In stall plug and your done. That will tell you that the tranny is full of lube. The noise is probably normal for that old of truck. This might make the transmission a little more quiet also.
Last edited by 235 Fat Fenders; 12/05/2007 10:48 PM.
| | | | | Joined: Oct 2007 Posts: 397 Shop Shark | | Shop Shark Joined: Oct 2007 Posts: 397 | Thanks Tom!
BTW, is there any kind of drain plug to drain out the old transmission fluid before I add new fluid?
"Lucille" ..... Proud Member of the "Southern Stovebolts" David Wolff 1946 Chevy 1/2-ton In the Gallery | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Yes. There is a similar plug on the bottom you can drain out the old grease. They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Oct 2007 Posts: 397 Shop Shark | | Shop Shark Joined: Oct 2007 Posts: 397 | George,
Thanks for the info about the drain plug. Hopefully "something" will come out of there when I open it! I'm catching up on a whole bunch of neglect.
"Lucille" ..... Proud Member of the "Southern Stovebolts" David Wolff 1946 Chevy 1/2-ton In the Gallery | | | | | Joined: Jan 2006 Posts: 586 Shop Shark | | Shop Shark Joined: Jan 2006 Posts: 586 | Use a paint strainer to get an idea of what is coming apart inside.
Wanted Good Woman: Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
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