Back in 05 I bought a MX6 bush hog. Last week I hit a stump and knocked off the stump jumper and sheared a shaft. A local repair guy told me JD quit making replacement parts due to some problem they were having. Instead, I have to buy a whole new gear box and everything for a whopping $1500! This is crazy! When does a manufacturer quit making replacement parts for something that is only five years old?