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03-29-2023, 12:12 PM | #1 |
Junior Member
Join Date: Aug 2017
Location: michigan
Posts: 16
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1941 V8 to auto trans adaptor
Hi guys, Been a long time, but I am asking for some suggestions for an easy way to install an auto trans in my finished '41 deluxe sedan. I woke up one day and found myself to be 82 years old....still need a hotrod but can't shift the old 3 spd, any more. Does anyone sell a reasonable adaptor to install a C4 or some other auto trans with minimum effort (cost)? Thanks in advance for any help...
Tony |
03-29-2023, 12:17 PM | #2 |
Senior Member
Join Date: May 2010
Location: Southern California
Posts: 7,075
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Re: 1941 V8 to auto trans adaptor
Also post your question on HAMB: https://www.jalopyjournal.com/forum/ In addition to your post be sure to use the search feature when you get there. I hate to say it but I think this will turn out to be a very big project.
Charlie Stephens Last edited by Charlie Stephens; 03-29-2023 at 12:31 PM. |
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03-29-2023, 07:45 PM | #3 |
Senior Member
Join Date: Jun 2014
Location: Williamsburg, VA
Posts: 1,668
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Re: 1941 V8 to auto trans adaptor
I presume the difficulty with the three speed is the clutch foot work, and not the shifting. I am also 82 and the clutch foot still works fine, but the upper body strength for steering in tight spots, - That is another matter!
My wife's '34 pickup has the C4 trans with floor shifter behind the '53 Merc engine. It works fine. And the rack and pinion steering in such a light vehicle is quite manageable. |
03-29-2023, 10:13 PM | #4 |
Senior Member
Join Date: Oct 2011
Location: elmira,ny
Posts: 1,529
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Re: 1941 V8 to auto trans adaptor
Flat-o-matic sells kits to mate c-4's to to F/H's.
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03-30-2023, 12:35 PM | #5 |
Senior Member
Join Date: May 2010
Location: Deer Lodge, MT
Posts: 659
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Re: 1941 V8 to auto trans adaptor
I agree with Charlie on this....probably a very large project.
You will have to modify the center cross section of the frame to accept the C4. Not sure but may have to create a new trans cover; floor modification. Then build a mount for the new trans. Convert to open drive or modify the trans to mate with the torque tube in the '41. figure out a shifting system or use a floor shift. Using the flat-o-matic you can stick with 6 volts, original starter and probably not have to modify the fire wall. You will need a transmission cooler as well. I'm probably forgetting a few things. |
03-30-2023, 02:10 PM | #6 |
Junior Member
Join Date: Aug 2017
Location: michigan
Posts: 16
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Re: 1941 V8 to auto trans adaptor
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