<blockquote>There are older pav's (and M/W's) that the drain hose comes out of a rectangular access panel on the back and the pump output on one type of pump is angled up so as to clear the hole for the drain hose.</blockquote> This is my situation, thanks for detailing that difference. Leastwise the pump I need is the cheaper one!
Matched pair is from kin-folk. They called a several months prior, said the washer was making an occasional grinding or rattling noise. The wife had long wanted an HE machine (read: frontloader), so they weren't much interested in repair. A few days later the noise cleared up. I advised to let the machine go until it dies, which happened a couple months later. Jammed-up on spin but supposedly (I didn't observe the situation) agitated. They cranked the belt, it turned one way, jammed the other. Bought replacements, gave me the old pair. My surprise at finding a simple pump failure.