I got my Shay when they first came out. I did all the Lub work and ran it for about an hour. It got put back in the box and do to other problems it sat it just a few days ago. When I sat it on the track I hear the motor run but it wont move. When I contacted Bachmann They said send it to them and they would fix it for $50.00. Might cost more for extra parts, plus I pay shipping both ways. I've heard of upgrade trucks but cant find any info on them anywhere.  My Shay is a 36 ton but I want to get a 38 and 55 for my line, if I ever get it running. Thanks BOB