Gary, the humorous part of this is my Chrysler Lebaron. Most of the K-cars and their "offspring" use a Saginaw pump. On a 4 cyl engine it is a big beast and is a royal PITA to remove or replace without taking other parts off first.
The J body Lebarons seem to have, at least on the turbo models, used a ZF pump that is considered "non-serviceable". They are available rebuilt and are fairly easy to convert to a remote reservoir if desired. The other nice difference is belt tension adjustments. The Saginaw has a tab with a 1/2" square hole so adjusting the belt tension is a two handed job, the ZF has a nice threaded adjusting link so it can be easily done with one hand.
Bill AKA "LOBO"
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"Getting old is inevitable, growing up is optional"
Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator
Wife's 2011 Flex Limited
Daily Driver 2009 Flex Limited with factory tow package
Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413