Thanks Mud. Shearpin was fine. Took off gearbox and stump jumper but had to leave town on business so they are still in the back of my truck at the New Orleans airport (at least I hope they still are there). Stump jumper was cotter pinned but I'm not sure the nut was tight, now that I think about it. I hate to put the whole thing back together only to find out the gearbox was the problem. I had to ruin one of the gearbox mounting nuts with a pipe wrench to get it off. I think it must have been put on with locktite. Anybody know if it is worth having a gearbox repaired as opposed to buying a new one? No idea what a re-build would cost.
Regards.
Regards.