Terex TA40 gearshift problems

We have a 2002 TA40 that won't move forward. Seems to be bound between forward and reverse. Reverse works great, neutral fine. No brakes locked up. All pressures to the gearshift valve body check out at 220-230 psi in the proper solenoids for each gear. Backed up to dump a load, and wouldn't go forward. Can only think its inside the gearshift assembly. Any input would be appreciated greatly. Also anyone know of a rebuilt for these available. Does not appear to be a clutch lock up,...

Terex TA40 gearshift problems

Terex TA40 gearshift problems