The "kits" for them are just seals & bearings, not the "wear" parts (gears on the shafts), and the adjustment is to take up the play, ensure it travels freely throughout the range, back off 25 degrees to eliminate any binding and secure the adjuster. Buying an old used box is risky. They wear in the middle, and if you adjust to remove the slack in the middle will bind when turned. Have you looked at new/rebuilt? JEGS lists a bunch - Borgeson Saginaw Steering Boxes - JEGS and Summit has some too - http://www.summitracing.com/search?k...0saginaw&dds=1 Your local NAPA (or favorite box store) probably has them too if you can give them a make/model/year reference?

.