F20 overdrive

BIGR · Feb 17, 2011

I'm looking at an F20 parts tractor that has an overdrive on it. It looks like an aluminum box about 8" wide x 12" tall with a lever coming out the right side (pulley side). It's bolted to the front of the tranny. There is a bracket on the transmission, when the OD is engaged the OD lever comes up an locks into the bracket to hold it engaged. I don't see any brand or numbers on it. Does anyone have any info on it? It engages, but is there way to make sure it works before I put it on my '39? Any other info would be great! Thanks!

Nebraska Cowman · Feb 17, 2011

Oh it works. There ain't much to break. But the way those works you leave the main transmission in neutral when you engage the box.

allaroundtractor · Feb 17, 2011

Try verbstractors.com they are in brighton mi. lots of f20 and 30 parts.

BIGR · Feb 17, 2011

So you just put it in overdrive, you don't have to shift between the gears? Would you know what brand that would be? Thanks!

Brian Schmidt · Feb 17, 2011

Heisler

36F30 · Feb 17, 2011

Not a Heisler, Heislers are cast Iron and not square, they also overdrive all gears and the pto through the tranny. Sounds like He has the Behlen style. That style was copied by other manufactures that didn't mark them, quite possibly came from Tractor Supply.

Heisler pic

sgtbull · Feb 17, 2011

That sounds like a Behlen overdrive. I know a parts yard that has a couple, still on F-20's, in s. central Il.

Anonymous-0 · Feb 17, 2011

I have a 1936 f-20 with an overdrive like you discribe.mine was made by a company called bennett&sons.it says that on a round plate that covers the front seal.the plate is held on with three bolts.was told it was mfg. in so. iowa,hope this helps you. Jim iowa.

F20 overdrive

BIGR

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Nebraska Cowman

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allaroundtractor

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BIGR

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Brian Schmidt

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36F30

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sgtbull

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Anonymous-0

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