Steering box replacement (or rebuild)

[rfmaster]

Hey all

Well, this past Sunday morning took my '75 C20 for a leisurely cruise. Over certain portion of a drive discovered that I have a lot of steering play - more than I used to have. This truck never had tight steering and all front end shops that have looked at it told me that links, bushings, ball joints, tie rods are in good shape. This leaves steering box and rag joint as the two possible suspects. Power steering box is all original and have never been touched. Rag joint is easy to replace, but I doubt it is a cause since I have about 1/4 turn play in steering wheel play (engine off, in park) when turning steering shaft at the box.

Question are:

1) Rebuild original - DIY or professionally? If professionally which company would you chose that knows these old Saginaw boxes and does a good job at a reasonable price. If DIY complete kit (also where to locate model number for this power steering box)

2) Source a replacement from JY - possible from a newer truck (will it fit??) Which model years make a good hunting target? Fitment issues?

3) Purchase outright (expensive) - where and how much??

Lots of Q's - so please sound in.

//RF