'39 transmission in a stock '36, is it compatible?

[gnolnor]

I have a stock '36 engine that has a stock '36 transmission. Can I switch out the '36 transmission with a stock '39 transmission? The old 36 trans- mission has metal flakes, making growling sounds. Will this switch work?

[Bursonaw]

The transmission swap is pretty much a direct bolt in. The differences are mostly internal. The only thing that may need to swap out from your 36 transmission is the outer clutch lever and the rear mounting assembly based on condition. You can also get those items new if need be.


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[Snouts out]

It's the best swap you can do!

[Mac VP]

Swap over the clutch release arm (7511 in the drawings) from your 36 trans to the 39. Swap over the complete rear mount/rear bearing retainer assembly from the 36 to the 39. Your 36 shifter lever will work perfectly with the 39 tower.

The big question......is that 39 trans in great working condition? It's a lot of work to get these transmissions out if you went through all the work and had to pull it back out to repair any issues with it.

[swanwaco32]

Mac Vanpelt builds a great transmission..!!!

[JM 35 Sedan]

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What MacVP said.....

Another thing I've done on an original 36 car was to swap the '39-'48 gears into the '36 case, and use the '39 wide fork shift top with the '36 lever. This was done to keep the original serial numbered case that matched the serial number on frame.

[flatford39]

I swapped the gears from a 46 48 into my 39 case. They are supposed to have better synchros. Not sure if they would fit in the 36 case. Van Pelt would know for sure.

[weemark]

Originally Posted by flatford39

I swapped the gears from a 46 48 into my 39 case. They are supposed to have better synchros. Not sure if they would fit in the 36 case. Van Pelt would know for sure.

the gears would fit a '36 case as well.

[Lawrie]

And another thing, use the GL4 oil,this made my 33 with the 46 gears shift oooh so nice.
Lawrie

[PeteVS]

Originally Posted by Lawrie

And another thing, use the GL4 oil,this made my 33 with the 46 gears shift oooh so nice.
Lawrie

What weight oil are you using?

[VeryTangled]

Hi Everyone, PeteVS, here's a post by Lawrie recently...

Originally Posted by Lawrie

Oil I used is
Castrol Manual VMX 80W
for cars and light commercial vehicles requiring good low temperature shifting -APL GL-4 Lawrie

Another post on that same thread (1933 Clutch Pedal Adjustment)

Originally Posted by 19Fordy

This is the least expensive place to buy one gallon Stalube SL24238 gear oil, even with the shipping and fees.
On 5/19/2017 I paid $9.83 for the gallon plus $14.85 shipping plus $1.95 handling plus $1.61 tax for a grand total of $28.24. That is less than any other source I could find.

https://www.finditparts.com/search?u...ar+oil&commit=

Opps! I just found where it's even cheaper on Amazon Prime.
https://www.amazon.com/CRC-SL24238-G.../dp/B000M8IHI2

That Sta-Lube is straight 140.