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1940 Tranny
#733270 03/26/2011 4:04 AM
Joined: Oct 2010
Posts: 11
Colorado
T
tracermc
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tracermc
New Guy
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Joined: Oct 2010
Posts: 11
Colorado
Does anyone know what the model number is or what it is refered to for the transmission in a 1940 1.5 ton truck. The casting number is 590474 SN#9088I33. It is a four speed with the thumb lock out for the reverse. I would like to find out any info so I can attempt to mate this up to my new 292 if at all possible. Any info would be great. Thanks.
Matt

Last edited by tracermc; 03/26/2011 4:05 AM.
Re: 1940 Tranny
tracermc #733282 03/26/2011 5:31 AM
Joined: Jan 2008
Posts: 4,961
Fredericksburg, Texas
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crenwelge Offline
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crenwelge
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Fredericksburg, Texas
I don't think there was any model number assigned to them. All I have ever heard them referred to is a GM sliding gear transmission because it uses sliding gears instead of syncros. The bolt pattern is different than later Chev or GMC transmissions. The only way it will bolt to a 292 is with some modification or with an adapter.
Re: 1940 Tranny
crenwelge #733340 03/26/2011 3:15 PM
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Posts: 11
Colorado
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tracermc
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tracermc
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Colorado
that is all I have been seeing too. I've seen 420 and 435 but those are syncro transmission and they are a longer case. my case is only 9". Thanks for the help.

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