Transmission swap

[macrisel]

So it has came to the point where my stock 3A is getting very teritorial.  By that, I mean that it likes to really mark its territory by leaking oil all over the place from the transmission/t-case.   I was really hoping to get to rebuilding them this winter, but other projects for the wife got in my way.

Here is my question.  I also have in my possesion a 1947 Willys truck that I picked up last fall.  Before anyone starts to feel too much envy, let me assure you, this thing is RUFF.  Multiple Bubbas in the past have used and abused this thing.  My plan was to put a SBC in it and have a rat rod daily driver.........  However, the reason I bought it originally was it still has the original motor, transmission, t-case and differentials (even the clamshell Timken rear diff) and I wanted spares for my 3A.

Will the trans/t-case in the truck be a direct swap for the 3A?  I don't think there are any differences, but I wanted to double check.  I am thinking about pulling the trans-t/case out of the truck and rebuilding it while I still drive the 3A around.  That way, I can take my time on each of them and not be forced to hurry up and get the 3a back on the road.

Anything I need to check?

[Bob W]

There are a lot more variables on the trucks and wagons than on the CJs. Is the truck a 4 cylinder? If so the transmission should be good. The parking brake/transfer case rear output could be different, but interchangeable with the CJ stuff.

[Bob W]

And with any old Jeep remember that parts could have already been swapped around, so a 1947 truck may not have 1947 gear boxes. 

[duffer]

What Bob said.  The pickup probably has a Cleveland rear yoke and no emergency brake drum, but you can directly swap those pieces from the 3A version.  When swapping the yoke, check it closely for wear.  If grooved, get a speedie sleeve for it and install a new rear seal in the truck T-case.

[macrisel]

And with any old Jeep remember that parts could have already been swapped around, so a 1947 truck may not have 1947 gear boxes.�

Yeah......I have been thinking that in the back of my mind!  I haven't had it up on the rack yet, but it is a 4 cylinder motor.  I have crawled under it to rob the front yoke off of the transfer case for my CJ and it swapped over with no issues.  I hadn't thought about the e-brake, but I can probably swap it out when I drop the trans out of the jeep.

I would really like to try and get the truck running enough to drive it some to check the transmission out.  If I had did that with my jeep, I would probably be doing a lot less work now..

Thanks Bob!

[Carls_jeep]

Mark, don't try to get the truck running if your going to pull the tranny/transfer cases. Your going to rebuild them anyway so it doesn't matter the current condition. Just replace and repair as needed and don't cut any corners or you will do it again. Also, use NOS or American made parts, PERIOD. DeBella, Novak and ebay are sources. If you need a complete synchronizer assembly I can give you the email of a guy that sells them, blocking rings and all.