Correct Jack?

[LBJ]

Went to a local wreck yard since I was passing by. Ask up front if they had any jacks for a mid 70's Chevy truck. Said I might find one out there, go look around. I found this out of an early 80's Surburban complete with actuator rod. Found another rod in yet another Suburban but not another jack. Took them both home with the jack for $10. I tested it at the yard and it works, just needs to be wire brushed and cleaned up. I'm gong to put it in the blast cabinet and really spiff it up. Is this the correct jack for a 77 Chevy PU? Part number is on it, so someone may be able to confirm one way or another. 2WD, correct, hiway. Here it is after a run thru the aluminum oxide blaster with self etching primer.