Thanks for the info guys...
Update: The JD fired right up with a new battery, drives and steers good. It needs both rear motor mounts...should they be rivted back in? Not sure how long it's been sitting, seems to push some black smoke when I get heavy on the throttle. The mower deck is off and an idler pully is frozen. When I hit the PTO switch it puts quite a drag on the motor and wants to stall sometimes..normal?
Update: The Cub motor turned over and started with a work. The selenoid looks to be shot, as I had to cross it to get it cranking. Here's the worst so far...went to put it into any gear and it won't move.....rolls free, no noise, no sign of leaking fluid, shift linkage looks ok.....how do I check the trans fluid? Yea, I know...got to get a service manual.....but for starters, I just want to make sure it's worth fixing. Thanks, Rob