Need a source for a good quality rebuilt Mopar model .94 P/S pump

Another factor is what drives these pumps.
The correct belt wont reach the bottom of the pulley. The drive friction should be at the sides of the belt. This is where the belt wears. Over the years it has been quite typical for a owner to tighten and re tighten a worn belt that should have been replaced.
Then the mfgr provided a place in the bracket to attach a 1/2 drive pull bar. It's sole purpose was to keep pry bars off the sides of the sheet metal reservoir. At the same time, It's a good way to over tighten this belt. Bottom line... Faults at what drives the pump would in many cases accelerate pump wear.
I don't know if any of this applies to your experience with Cardone and/or rapid pump failure.
We don't know if Cardone has any replacement parts produced either.