The drive gear broke on vac. pump assm. way before it's time the gentleman that repared it,someone I trust, has a lot of experience on ram cummins says he has not seen this before as the truck has only 53,530 on the the clock and now I am a little perplexed on if I should keep it or not. I rebuilt the AC,(replaced com. )new waterpump redone the radiator I am afraid my trusty Ram turning into a money pit! Input welcome TIA 6