Get a hpi savage 77mm dogbone and revo extended drive cups for the rear and that's all you need. The only shafts I've ever found for the extended maxxare mip splined shafts......PUREJUNK!! My picco 21 snapped them things(the pins)like twigs, and that engine is a dog. They also rust and if they come apart it'sgoodbye half of your cvdshaft!I have to go to work I'll get you some part #'s later today.