A friend of mine has converted his including the active diffs for about 350. Chassis is different shock towers are dimensionaly the same just lighter. A arms are different they are wider needs new cv shafts. Frt hubs are different. Radio tray is stiffer. Other odds and ends. I would have to say those are the major changes. There are alot of little things as well. He just compared the 2 manuals together and ordered what was different. Chris