Farmall SM clutch replacement

[PretendFarmer]

My 1953 Farmall Super M clutch is getting weak. Trying to get a load moving in 3rd is difficult and just yesterday the clutch didn't get the load moving and the engine didn't stall.

To me, even starting in 3rd gear, the clutch should be able to dog the motor down to stalling, or get the load moving. Since neither happened, I am thinking this clutch is getting weak.

I have replaced other clutches on my other tractors. When the adjustment gets pretty far out, I have replaced just the clutch disks and pilot bearing as it didn't wear all the way to the rivets yet and score the pressure plate or fly wheel. And I have been using those tractors for years like that with no sign of issue. Since its not making any noises, I am thinking I can save this pressure plate and no have to resurface the flywheel as I have done several times before.
Just as a side note, I am considering the cheapo path because we are in the process of buying and selling a house. So my tractor budget is at a minimum for the next couple months.

I am going to disassemble it first, then make a judgment from there.
My question is, the tractor has a J suffix and that's telling me it has a Rockford clutch. I don't know if that means its just a different clutch disk, or if the flywheel and pressure plate are different as well. I know its very possible it has a different clutch now, that's also why it needs to come apart before I order parts.
Any info on what is different about a Rockford clutch is appreciated.

 

[rustyfarmall]

My experience--ALL of todays replacement clutches are of the Rockford style.

I would look for a "kit" that includes the disc, pressure plate, release bearing, and pilot bearing. If the flywheel is a bit rough, usually the new clutch will be a bit "grabby" at first, but will eventually wear in and be smooth. If you want to do it 100% right, resurface the flywheel.

There are also some "button" style clutches available, but I think those would be a bit extreme for normal use.

 

[the tractor vet]

Well it's like this If it is slipping then ya need EVERY THING and the flywheel needs refaced and the step needs cut so that the clutch hight is correct . AND i would be checking for any oil getting on the clutch as well as you may need a new rear crank seal or transmission seal. Never use and old pressure plate because heat weakens the pressure plate springs.