I also have experienced issues with the rear end gears on both of my railtrucks. On both of these vehicles I have spent considerable time, and expense, on cosmetic upgrades (Mt. Blue body on one), and to send them back for replacement is out of the question. Both were acquired in the U.S. but my dealer, here in Maine, is essentially out of business. So, there goes a second alternative. Replacement parts of good quality should be available for those modelers who want and are able to use them. Period.
Bob Bennett
Bob Bennett