Shuttle shift

You might try asking over on the tractorybynet.com forums.

I don’t have any information on a shuttle shift tractor and not many people monitor this site anymore.

yeah what could it hurt if you can get to the linkage just before it goes into the trans. disconnect it and then see if you can use some leverage to get the shift shaft to budge, also I would lubricate when it goes into the gear case housing. just only use a reasonable amount of force to get it to move.