Snook, let me tell ya what many of us here in the "colonies" like to do to our rangos to make em bulletproof.
We use aluminum front pivot blocks with metal inserts to match. Metal crunch spacers for the hubs. Aluminum servo saver, servo horn, and rear diff loop. And if you don't want your ball cups to pop off every time you adust them you can replace them as well. I'm using Team Associated TC5 "metric" ball studs and cups. I have had no problems with my since I broke a plastic diff loop just after buying it. My slipper was too tight. I should mention that I'm still using the plastic diff loop. I will eventually replace it with a Tresrey aluminum one when I get around to it.
Good luck.