There is a very specialized "electronic vapor deposition" coating that could be applied to the drive elements and eliminate failure. This coating , known in the trades as "DLC" ( diamond like carbon) has been used on wrist pins , solid lifters , valves , rocker arm shafts , and other "problem areas". It leaves a black coating on steel that is virtually wear proof with minimal lubrication. If I were still running a Paxton , I would do this modification.
Randy