Model 1920 ford tractor. doesnt go in gear well. i think it has a 2 stage clutch not sure

if hydraulic system to work the clutch
bypass internally of master or slave or
system leaking

if a rod adjustment check free play of clutch fork
and pedal height

two types of clutch std or PTO dual clutch

dual clutches do have a higher failure rate

think the clutch has gone ,,or a drive shaft

Please check and see if there is a steel brake line from the clutch pedal to the transmission, because I think you might have a "hydraulic" clutch.
This means there is a master cylinder near the clutch pedal and a "slave cylinder" mounted on or near the transmission.
Over time, the slave cylinder can fail, and the tractor will no longer shift for you because the pedal will not release the clutch.
The slave cylinder would need replacement or rebuilt.
God bless your efforts.

Are you sure you installed clutch plate facing right way? They are either stamped or have a tag says "flywheel side". Or might have wrong clutch kit.

yes it sounds like the clutch is worn.1st thing when a cutch wears is its hard to get in reverse
as long as all air is bleed out(pedal feels normal)not a bad job unless its 4 wheel drive
good luck

If you can put it into gear easily without the engine running but it grinds or is hard to put into gear when the engine is running then the clutch has not fully disengaged. If the clutch does not slip once you are moving then the clutch is not likely the problem. Instead you will have a faulty clutch slave cylinder and/or clutch master cylinder. The best thing to do is have both replaced and be sure that they are properly bled of all air. If the clutch does slip then it will of course need to be replaced, and be sure to have the pressure plate re-surfaced! Then there is the possibility, albeit rare, that all three need replacement.

Those clutches aren't adjustable at all. Sounds to me like either the Clutch Master Cylinder is bad (or could even need fluid) or the Slave Cylinder is bad. If it needs fluid there's possibly a leak between the 2.

That sounds like a bad clutch

sounds like your duel mass fly wheel has given up common on these
cost a lot to do

you say it doesn't slip ,pull hand brake hard, start engine
put it in fifth gear accellerate and let clutch out if it dies quick the clutch is ok if not it needs replaced ou adjusted