Multi-disc to 39 transmission

mrtexas

mrtexas

Well-known member
I'm getting ready to swap out my early 28 multi-disc transmission to a 39 transmission.

Can someone help me with a list of the parts I need around the U-joint? I already have the bell housing adaptor/pedal mount/ebrake mount kit from the usual vendors

Apparently I can't use the Model A bearing retainer
The Model A part has 4 bolts and the V8 6
The 42/28 one in Macs doesn't look right either

I see in the Model A picture a bearing retainer, inner U-joint cover, and top and bottom outer U joint cover.

Early multi-disc bearing retainer and outer top/bottom U joint covers seem to be 3 pieces rather than the later 4 pieces:
V8TransmissionMulti.jpg


Later Model A bearing retainer and out top/bottom U joint cover
V8TransmissionModelA.jpg


39 trans 6 holes with Model A bearing retainer 4 holes
V8Transmission.jpg


Model A bearing retainer and top/bottom outer U joint cover
V8TransmissionDiagram.jpg


V8 bearing retainer 6 bolts on one side and 4 bolts on the other
V8TransPlate.jpg
 
Last edited:
Elrod said:
Should be able to just swap the clamshell on the torque tube. You also need a bell housing adaptor.
Click to expand...

Hmm, the bearing retainer on the 39 transmission has 6 bolts and the model a bearing retainer has 4 bolts.
 
Yes. Leave the 4 bolt bearing retainer on the model A Trans and remove the model A transmission from the car, 4 bolt bearing retainer and all. Then bolt the A&L aluminum bellhousing adaptor and then put the 39 transmission with the 6 bolt bearing retainer on it into the car. The motor mount feet on the 6 bolt 39 trans bearing retainer will just free hang since the model A engine is supported at the bellhousing to the frame.
 
Elrod said:
Yes. Leave the 4 bolt bearing retainer on the model A Trans and remove the model A transmission from the car, 4 bolt bearing retainer and all. Then bolt the A&L aluminum bellhousing adaptor and then put the 39 transmission with the 6 bolt bearing retainer on it into the car. The motor mount feet on the 6 bolt 39 trans bearing retainer will just free hang since the model A engine is supported at the bellhousing to the frame.
Click to expand...

So I use the V8 6 bolt bearing retainer and the Model A inner/outer U joint covers?
 
You need the u-joint cover from a later Ford as they only have four
bolts and the Model A has six bolts.
 
Unless I missed some thing, MRTEXAS has an E-28 with a 3 piece brake system, he
needs to hang his brake stuff somewhere. Sir is this correct?

Dudley
 
Here is the 1939 trans in my Cabriolet. You also need the pedal adapter that mounts to the bell housing and shift tower, but you never asked about that portion, so I was assuming you already knew that.

cabby39trany.jpg


cabby39pedals.jpg
 
Last edited:
d.j. moordigian said:
Unless I missed some thing, MRTEXAS has an E-28 with a 3 piece brake system, he
needs to hang his brake stuff somewhere. Sir is this correct?

Dudley
Click to expand...

I used to have the E28 brake system(designed by Rube Goldberg) until I put hydraulic brakes on. I found a guy to sell me the 4 pieces bearing retainer, inner cover, and top/bottom clamshell from a 40 Ford about an hour after I posted WTB on the EV8 want ads.
 
Elrod said:
Here is the 1939 trans in my Cabriolet. You also need the pedal adapter that mounts to the bell housing and shift tower, but you never asked about that portion, so I was assuming you already knew that.

cabby39trany.jpg


cabby39pedals.jpg
Click to expand...

Yup, I bought the complete conversion kit including the bell housing adapter and the 3 other adapters required. Thanks for the pictures and responses.
 
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