Todd told me in LV that even the old arms can be used on the new car as a tuning option. The new ones will be longer. I would assume if you use the said old arms on the new car you would also have to use the CVD's as well as the LCD's when useing them, since they are shorter. I would imagine some of the bearings will be the same as well. Shocks are definitely the same so you can keep all your springs and pistons from the old car.