HHhuntitall
TDR MEMBER
Power steering pump is the same. The reservoir is different on hydraboost systems, mid '96 and later with another return line added to the reservoir. The vacuum pump on the earlier dodges is a dual diaphram Gould, I believe. The diaphrams occasionally go bad and they won't pull vacuum and let oil go into the vacuum lines, albeit very rare. The later models use a Gould piston pump that are even more dependable and can pull a little more vacuum, quicker. Either one is more than sufficient for vacuum assisted brakes and operating the dash A/C doors. I've never had one of the 2nd gens apart, but looking at the externals, I'd presume it ran with a piston. I've never had one go bad.