I talked with Curtis at CAA this morning (see my doofus on last night's post). Iif I ship the compressor back to them, they will change the rear head out with a core replacement, and probably not charge me labor. I'll pick up a new discharge hose at the same time. I pay shipping, and a core charge on the head. Saves me greatly over the cost of a new compressor. Great company to deal with! Good tech department.