I have used Cardone, or I should say I tried to use them. I ordered a master cylinder from them and it did not have the correct set up of fittings on it as one of the inlets was not drilled out. They swore up and down that it was the correct part for the Crossfire and that I was wrong. I still had the OEM part on the car but they said it had to have been changed at one point, I explained that the service manual showed my part, no the guy said I must be mistaken. Obviously I was dealing with someone who considered their parts list as perfect. The part went back to them and I got one from Jim at the Crossfire Shop on here. There actually was nothing wrong with my MC anyway.
The parts manual shows the parts that make up the water pump assembly, using the part numbers shown theoretically one could rebuild the pump yourself if no damage has occurred to the main casting and spindle. Back in the day it was quite common to replace the rotating seal which was a carbon like material if I recall correctly, the bearings and seals could all be replaced. This was before the disposable society we live in now and before compsnies like Cardone sprang up from little back street repair shops.