Toploaders locked up tighter than a tick. Everything was fine. Went to back out of the shop and it felt like the rear brakes were locked. Backed up six feet wouldn't move any further. Thought it was the diff. but jacked the rear up and disconnected the drive shaft and the rear wheels turn fine. With transmission in neutral, the drive shaft wont turn. Lube is fine. Was just putting the finishing touches on the ERA and took it out for the first dirves. Left the tranny tunnel off just to make sure the linkage was adjusted right. Now this Arghhhhh. Any suggestions other than dynamite?