using rod ends

I dont intend to drive this car in inclement weather, however we use spherical rod ends in a lot of places on the aircraft i work on. The good ones have wiper seals around the ball perimeter to help keep dirt out. These last a fairly long time in this environment. (Dont tell me aircraft arent or dont get dirty like cars are either) the stuff i work on isnt corporate aviation, i work on commercial regional aircraft. Basically a flying bus. Needless to say these put up with dirt, dust, lots of vibration, and even at their most worn out condition they will have less slop than the factory setup.

I have heard with a diaphragm type clutch its a bit more tricky to set the linkage adjustment. I imagine that has to do with the slop in the factory linkage.