Did you have any luck locating these, or did you replace the control unit? I made some that are very sturdy. I haven't put the car on the road yet, but in assembly and adjusting the cables, they seem to work just fine. I tried to break them on purpose to see how they'd hold up, and I'm pretty sure they're stronger than the original parts. So far, so good. I wouldn't want to try to make them to sell, have to warranty them, etc., but if you still need them I can send you a piece of the material I used. I'm not even sure what the material is - maybe fiberglass.