I know it's been hashed out many times on this forum but the rear exhaust design on my Viking is just crap. I would not recommend anyone buying one of these machines until this problem is solved. Even with the heat shield I built, the rear differential is still getting unbelievably hot. We will all be lucky if our differentials last a year with this excessive heat. Please anyone considering buying one of these pieces of garbage, Don't do it. I'm wishing now I would have bought a Polaris. My dealer is checking with the factory on a fix for it but I'm not holding my breath for his answer. Rant over for now.