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Old 05-10-2013, 03:39 PM   #1
Tugmaster
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Default Anyone running a 3spd from a V-8 car?

I have seen adapter plates for mounting a later (30-40's) Ford 3spd to a Model A engine. Anyone here done it before? How do you like it. I know you get synchronized gears but what else?
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Todd
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Old 05-10-2013, 04:40 PM   #2
CarlG
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Default Re: Anyone running a 3spd from a V-8 car?

Several guys in our club have '39 transmissions in their Model A's. They like the synchromesh, and the gear ratios is primarily what I've been told. Don't know if or what kind of adapter they used.
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Old 05-10-2013, 04:51 PM   #3
lindy williams
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Default Re: Anyone running a 3spd from a V-8 car?

I'm running a '38 trans with all helical gears and a '28 tooth cluster gear. The 28 tooth cluster gives you a little more speed in low and second than the 29 tooth cluster. It all works fine but remember its an antique trans design and the synchros don't work like a modern trans. You wont be throwing any drag racing shifts. The later trans 39-48 have better synchros but are pricier.
All of them will be pretty pricy if you have to rebuild the trans and then buy all the adapters.
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Old 05-10-2013, 04:53 PM   #4
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Default Re: Anyone running a 3spd from a V-8 car?

Thanks for the replys. Clings sells the adapter for the 32-39 3spd
Todd
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Old 05-10-2013, 05:05 PM   #5
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Default Re: Anyone running a 3spd from a V-8 car?

Cling's has the adapter. https://www.clingsaftermarket.com/addtocart.asp?prod=43
Fairly easy job to do.
There are different gear sets and interchangable parts combinations. The later synchros will fit the earlier gearsets and cases, etc. VanPelt Sales website has lots of good info. http://www.vanpeltsales.com/FH_web/f...sID_3speed.htm
I like the 37-38 gearset which has a little higher ratio than the Model A. My engine is not stock and I use a 3.54 rear end. Very nice for touring. Others will have opinions.

Last edited by PC/SR; 05-10-2013 at 05:10 PM.
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Old 05-10-2013, 05:53 PM   #6
1931 flamingo
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Default Re: Anyone running a 3spd from a V-8 car?

It's a "slick" conversion and as stated later gears and synchros will go in an earlier case. Street Rodder mag has a good article on rebuilding and assembling one in the latest issue.
Paul in CT
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Old 05-10-2013, 09:33 PM   #7
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Default Re: Anyone running a 3spd from a V-8 car?

AS mentioned on posting #5 above that PS/SR posted .... this book by Mac VanPelt is an excellent source of info on finding parts are needed, what parts interchange and rebuilding the V8 / Model B transmission.

http://www.vanpeltsales.com/FH_web/f...trans-book.htm

The later V8 gears sets will fit in the 32-33 Model B cases also.
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Old 05-10-2013, 11:21 PM   #8
BILL WILLIAMSON
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Default Re: Anyone running a 3spd from a V-8 car?

I, personally, would never do it. With all the expense for adapters, lots of modifications, & lots of labor. Why do it, when the Model A transmission is rugged & dependable. If shifting is a problem, just learn to shift it PROPERLY. They're only original ONCE! Bill W.
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Old 05-11-2013, 12:11 AM   #9
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Default Re: Anyone running a 3spd from a V-8 car?

I agree with Bill up to a point. There is no reason to go to the v8 trans unless it is for a specific purpose. I only did it when I decided to try hill climbing. The different gear ratios were a plus with my set up, but that may not be applicable on a stock or milder engine.
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