Not flaming anyone but It just seems pretty cut and dry doesnt it? Rebuilt = works Junkyard = unknown Its a car part.
But I do understand what your askin... but its entirely subjective. Yeah Toyota parts kick ass, but you might grab that one used unit that had the septor shaft repaced twice in the field, or suberged in a lake for about two weeks....
And easy on the newbs, you really never know who you are talking to. Respect