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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!
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| | | | Joined: Dec 2014 Posts: 305 'Bolter | | 'Bolter Joined: Dec 2014 Posts: 305 | What model trans came stock in a 1941 COE? Is it the same as a conventional truck? What years would it fit? | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Same as conventional, just different shifter!
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Dec 2014 Posts: 305 'Bolter | | 'Bolter Joined: Dec 2014 Posts: 305 | what model what make? what years would it fit?
Last edited by 29tons; 01/17/2023 12:32 AM.
| | | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | what model what make? what years would it fit? Chevrolet 4-speed (nick named the "crash box"). This is a non-synchronized trans used from 1941 to 1947. Mike B  | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | This trans does not have the bottom right mounting bolt offset like ‘47 to present GM trans.’
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Apr 2007 Posts: 1,038 'Bolter | | 'Bolter Joined: Apr 2007 Posts: 1,038 | I believe the transmission is made by GM and is called GKT-134. Regarding fitment it spans at least 1937-1947; I am not sure when it started production.
Kent | | | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | Chevrolet 4-speed (nick named the "crash box"). This is a non-synchronized trans used from 1941 to 1947. Mike B Typo on my part...this trans was used from 1931 to 1947. 1931 was the first year for a 4-speed in a Chevrolet truck... Mike B | | |
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