Did you know Yukon has never ever actually ever made any drivetrain component? They just buy generally higher quality components from the other companies, put them in fancy blue and white boxes and give em a big thumbs up approval. After blowing up 3 sets of Yukons it really doesnt matter who the gears come from. BTW, don't let yukon know if you plan on running anything bigger than 35's on the 8 inch toy R&P's
