Farmall F20 “road gear”

[Semerod Farm]

It seems from my research that some F20’s were factory equipped with a high speed 4th gear from my understanding. If this is true is there a way to check if the tractor has this high speed gearing without firing up the tractor and driving it. I’m asking this because I’m going to restore my grandpa’s 1934 F20, which I know has the low speed 4th. I have a parts F20 and I think it’s a 1937 and I have the motor tore apart because I needed the head off of it, and if it has the high speed 4th gear I would like to swap it into my grandpa’s tractor because I would like the faster speed for tractor drives or shows. Thanks and my bad if I’m understanding it wrong I’m not an F series guy. I just don’t want to tear down another tractor unless I’m sure it has what I’m looking for.

 

[Chris NW Ind]

From a 22 year old post:

 

[Chris NW Ind]

Far as swapping gears around in transmissions, I have no idea.

 

[Semerod Farm]

Far as swapping gears around in transmissions, I have no idea.

Ok thanks Chris that’s exactly what I needed I’ll probably end up swapping transmissions of this is the case.

 

[Chris NW Ind]

Good luck. I'd be interested to hear if it is possible to swap gears between the 2 versions.

 

[Semerod Farm]

Good luck. I'd be interested to hear if it is possible to swap gears between the 2 versions.

Yea guess not both of mine are the standard slow gears that’s a shame.

 

[Pete in Holland MI]

My 39' narrow tread has the high 4th. Does about 10mph. Bring hearing protection though. Those straight cut gears really howl !