Okay, that makes sense for that age — the shuttle / reverser goes out on those MF 60s all the time.
Good news: With a bad trans it's still worth good money, just not as a running tractor. Guys buy them for 3 reasons even with a dead trans:
The Perkins diesel engine ($800-$1,200 by itself)
The loader + backhoe hydraulics / cylinders / bucket
Rear end / front axle parts
With bad transmission, price it as a parts / project machine:
List at $2,900, take $1,800 - $2,200 cash as-is
Listing that sells it:
MF 60 Massey Ferguson Workhoe Loader Backhoe — PARTS / PROJECT — Transmission bad
Complete tractor, Perkins diesel was running, loader and backhoe complete, hydraulics worked last used. Transmission slips / no forward/reverse. Good engine, good buckets, tires hold air with chains. You haul from Alta. $2,900 OBO — priced for parts, not