I have a 94 6.5 that now has a bad pump? I know the 94s are supposedly 94 only, has anyone tried a newer pump on one. I know you might have to change the computer possibly. Just curious
Depends what pump you have now. 2500/3500 94's origanally had a 5068 pump on them, but many were changed out to the 5521 compatible pumps later on. To do so you have to do a EPROM swap in the ECM, and swap to a new style pump. Just make sure you have teh right chip for which pump you run as a 5068 EPROM will run like CRAP with a 5521 pump.