Clay,

I would take the complete spur and two speed assembly off the truck. Get some parts cleaner and clean it all real good and get all the oil off. Most likely the one-way is just slipping as that is a really common thing to happen on the lst2 trucks. And there is also a chance that you could have possibly over oiled the bearing and some oil worked its way back to the slipper pads.

Take it all apart and clean it good with parts cleaner. Then blow everything off with compressed air. Then just put 1 drop of oil on the one-way bearing and reinstall it and try that. If that doesn't work there is a TON of good advice on lstforums.com

Come on over and register on the forums. Even if my advice fixes your problem there is some good info and really nice people on there.....