RE: Wanting to UPGRADE
I may be able to buy from the German Ebay. Funny because my wife is German. I had her translate a couple of the listings for me this evening. Problem is that most of the ones that I saw only ship to Germany. We coudl probably get her uncle to purchase parts for us and then ship them to us.
I have the same problem with the gears slipping ( I think). Does it sound like they are just scraping against each other with a clicking noise when they slip? If so that is exactly what mine is doing. Might have to try and glue my gears as well until I can get one of the metal gear sets.
I also want to get some metal tracks. Only place I found them so far is on the German Ebay. I thought it was kind of strange though because the packaging is in english.