Farmall 140 Serial Number

[SouthernFarmall]

I have a 1962 140 with serial number "21023 J". Does anyone
know what the J stands for?

SF

 

[Jim Becker]

That means it left the factory with a Rockford clutch, may no longer be so.

 

[SouthernFarmall]

Is that a positive, negative, or does it matter?

SF

 

[Jim Becker]

Some people think it matters. I don't.

 

[mkirsch]

From what I've seen, 99.9% of Farmalls must've come out of the factory with Rockford clutches.

I've only ever seen any other clutch, an "Auburn" on a Farmall A and/or a few Cubs.

It makes you wonder why IH bothered stamping the J, or bothered having clutches other than Rockford at all.

 

[Janicholson]

The Rockford was considered the heavy duty clutch. It turns out that there was little difference between it and the Auburn. All common replacements are Rockford design and compatible. Jim

 

[Jim Becker]

The Rockford was considered the heavy duty clutch.

Like I said, some people think it matters. Harvester considered them interchangeable and used whichever they had a shipment of. From what I have seen, the Auburns were much more common in the '40s. Later on, it went the other way.