The Ford Barn

old splicer · 03-05-2023, 04:15 PM

I'm attempting to replace a non synchro 4 speed in a 51 F-1 with the light duty 3 speed topshifter, can I use the 4 speed rear trans rubber mount? It looks very similar to the rear trans mount on a 47 truck.

Mac VP · 03-05-2023, 04:56 PM

If you’re referring to the saddle shaped rear mount, the answer is yes…..as long as the truck is the F-1 half ton and not something bigger.

old splicer · 03-05-2023, 06:00 PM

Great Its a half ton. Thanks for the info. I'm guessing a driveshaft out of a 47 open driveline should fit?

Mac VP · 03-05-2023, 06:32 PM

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Yes if you can find one. You’d want to get the slip yoke too. Actually, the driveshaft from the 1948-52 F-1 would be the same.

03-05-2023, 04:15 PM	#1
old splicer Junior Member Join Date: May 2010 Location: nor-cal Posts: 27	Transmission conversion I'm attempting to replace a non synchro 4 speed in a 51 F-1 with the light duty 3 speed topshifter, can I use the 4 speed rear trans rubber mount? It looks very similar to the rear trans mount on a 47 truck.

03-05-2023, 04:56 PM	#2
Mac VP Senior Member Join Date: May 2010 Location: Cincinnati, OH Posts: 1,361	Re: Transmission conversion If you’re referring to the saddle shaped rear mount, the answer is yes…..as long as the truck is the F-1 half ton and not something bigger. __________________ VANPELT SALES LLC Cincinnati, Ohio Office: 513-724-9486 www.vanpeltsales.com www.classictransmission.com

03-05-2023, 06:00 PM	#3
old splicer Junior Member Join Date: May 2010 Location: nor-cal Posts: 27	Re: Transmission conversion Great Its a half ton. Thanks for the info. I'm guessing a driveshaft out of a 47 open driveline should fit?

03-05-2023, 06:32 PM	#4
Mac VP Senior Member Join Date: May 2010 Location: Cincinnati, OH Posts: 1,361	Re: Transmission conversion Sponsored Links (Register now to hide all advertisements) Yes if you can find one. You’d want to get the slip yoke too. Actually, the driveshaft from the 1948-52 F-1 would be the same. __________________ VANPELT SALES LLC Cincinnati, Ohio Office: 513-724-9486 www.vanpeltsales.com www.classictransmission.com