Mike,
Thanks for the info and links.
I am not sure why he has two different part numbers listed for '85 & '86 though, everything that I have ever seen list the same part number for those years.
Also he lists that as being a TRW #15707RS but that number is actually for a FWD GM application. #15736 is however the correct TRW number.
I have bought three different rebuilt racks over the years and all three of them were painted black and although they were nice rebuilds, they didn't have the nice details that this rack you got has.
The boot clamps are just like the OEM ones.
It's not painted black so it looks OEM correct.

the fittings look new, not reused.
Up until about 2 years ago, you could still buy a brand new rack assembly from TRW/Federal Mogul, by looking at your pictures I would almost bet that the rack you have is a private labeled one of those, it looks too good to be a remanufactured unit.
Very nice find, especially for the price.
I think I may just have to order one of these.
Brent