presumably, a roller set and rebuild set can be had from Specter - last I checked it cost like $180 altogether
we recently rebuilt an early box that I had picked up from Tim Hill 2 years ago or so (the stuff in there was a vile mix of gear oil, water, grease and god knows what else

) we disassembled as far as we could, cleaned everything, took out shims to tighten it (keep the shims in a safe place, they are unobtanium) and put it together again - there are really only 6 parts or so to it, unless they have significant wear, you may not need the rebuild kit (used parts, probably to be had from mark's Offroad - just before Cruise Moab, he replaced his manual steering in the blue 45 with powersteering)
we put grease in there; (90W leaks, grease leaks at least less ;p)
all the while, I heard
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
"this is turd polishing - get power steering"
so we replaced this rebuilt column for the original column in my truck
I was told, if I were even thinking of rebuilding that spare now, it would be "extreme psycho turd polishing"
