Why replace when they are easily rebuilt. Seal kits are less than $20. The pully puller can be borrowed fron Autozone and then all you need is a few hand tools.
Saginaw pump reservoir is pear shaped and Federal/Chrysler has a round reservoir. I just finished my 1970 Swinger 340 Fed pump and it took all of 2 hours to get it off the car do the rebuild and put it back on. I did the Sag pump on my Vette 2 years ago and it was just as easy.
Jerry
