I'm going to switch my GT-500 back to the factory C6. It has had a 4-speed set-up. I was hoping someone could help me out with all the details and parts I'm going to need. I have the transmission cooler, engine plate, flex plate and inspection cover. Here are the questions I have. Of course I will not think of everything so any help you can give me would be appreciated. 1. I'm looking over the shop manual and various repair manuals that I have for the shift linkage and kick-down linkage. I'd like some help from anyone familiar with exactly what parts I will need. 2. Is the transmission mount the same between 4-speed and automatic? 3. Is the drive shaft the same? 4. Is the shifter and neutral safety switch the same as a C4? Can't think of any other questions at the moment but I'm sure I will have more!! thanks for your help Rich