4Crawler

iTrader: (3)

Might be different on the later engines or on ones with no factory A/C.

xxxtreme22r

that's what I am seeing through some of the diagrams, different hoses listed with/without ac to/from the valve on the P/S pump.

from the looks of it though an 88 had that adjuster only with factory P/S cooler, no mention of a/c. Jeez some of these diagrams are a little confusing lol.