FYI for anyone wanting to add the 2.0 rear arms to a 1.0 chassis. The cutouts on the 2.0 chassis are different. Therefore you will need to run at least 2 degree of anti squat or dremel down some plastic on the arms to run the 2.0 kit set up of 1 degree. Also make sure you move the shim from the front of the hinge pin to the rear - and only use one 0.5. It is a good idea to download the 2.0 manual to see how the new parts work together.