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1937 Chevy Transmission Help


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  #1  
Old 01-02-2018, 11:52:35 PM
WesPete66 WesPete66 is offline
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Question 1937 Chevy Transmission Help

I have a 1937 Chevy 3-spd transmission that is in need of repairs. The case is marked with 590822, 1937 Chevy passenger car. Is there anybody here who has first-hand experience in tearing one down? I'm in process of disassembling one and have gotten down to the reverse idler gear/shaft, and am having trouble removing it. Have driven the retaining pin in but still it will not move. (I have found two service manuals detailing this, but still can't get that shaft out..) Help please anyone?
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Old 01-03-2018, 01:07:26 AM
Oldtech Oldtech is offline
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Default Re: 1937 Chevy transmission help ?

Yes. I have worked on a few. probably mostly 40s. There may be expansion plugs in the ends of the shaft bore that have to be removed first. Beating on them only makes them tighter.
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Old 01-03-2018, 08:39:21 AM
DaveHC DaveHC is offline
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Default Re: 1937 Chevy Transmission Help

This might help
http://chevy.oldcarmanualproject.com/

---------- Post added at 07:39:21 AM ---------- Previous post was at 07:38:19 AM ----------

This also
https://www.ebay.com/itm/Best-Repair...m4383.l4275.c1
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Old 01-03-2018, 11:31:53 AM
BHoward BHoward is offline
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Default Re: 1937 Chevy Transmission Help

I worked in a GM garage in the 50s, and a fellow came with an old Chev, 38 I think and said I,v got no revers. I put the car on the hoist and said your right you have no revers , it must have fallen out on the road. The whole corner of tran that held the revers idler was missing. On yours , if you have the pin out the idler shaft should drive out. But it,s been over 65 years since I,v worked on one. Good luck Bill H.
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Old 01-03-2018, 03:18:56 PM
WesPete66 WesPete66 is offline
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Default Re: 1937 Chevy Transmission Help

Bill, sounds like somebody tried hitting reverse while cruising down the highway. Maybe thought they had a 4-speed instead. I bet they denied doing it too.. HA
And Dave, yes I found that site, actually got my service manuals from that site. That's an awesome resource for the chevy buffs!
I wonder if that shaft is rusted in place? Maybe I'll try a little heat on it next..
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Old 01-03-2018, 04:36:55 PM
Vanman Vanman is online now
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Default Re: 1937 Chevy Transmission Help

Thirty years newer, I realize, but on Corvair transmissions I recall the shafts being *slightly* larger at the end so they would press fit into the case and not leak oil. Once pressed out beyond that first ~1/2", they slide right out.
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Old 01-03-2018, 06:38:05 PM
BHoward BHoward is offline
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Default Re: 1937 Chevy Transmission Help

Wes I think all it would take to break the corner of transmition is a peace of a tooth to run through between the cluster and revers idler. That,s what probably happend.
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Old 01-09-2018, 11:37:14 AM
WesPete66 WesPete66 is offline
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Default Re: 1937 Chevy Transmission Help

Good news! I went out to look it over again & decided to go through the motions yet one more time. Hooked a prybar behind the shaft, and nothin! Put a drift against the front end of the shaft, smacked it, and it slid back into the case!!! Then all it took was finger pressure to slide the shaft right on out of the case! It was simply stuck in place from years of no movement...
Now on with this project..
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Old 01-10-2018, 12:06:49 PM
edisondiamond edisondiamond is offline
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Default Re: 1937 Chevy Transmission Help

The Vintage Chevrolet Club of America has an active forum. That would be a good place to add to your list of contacts for information. I mostly work on early Ford's but have worked on Chevs too and they were able to help with my questions.
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Old 03-26-2018, 09:54:29 PM
junkyardjeff junkyardjeff is offline
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Default Re: 1937 Chevy Transmission Help

When I took apart the original trans for my 37 Chevy p/u I used the procedure for the 49 to 54 trans in a Motors Manual.
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