Seems the B revision is the ABS version, and the A revision is the non-ABS version. My mechanic already got the part, and while it would be cheaper to order from someone else I can't afford to have the car sitting at the mechanic's shop for days while I wait, and it isn't riught to ask him to hold the car in limbo so I can buy a cheaper part somewhere else.

The funny part is that the guy at FCP specifically asked which kind I needed when I ordered it and I specifically told him "non-ABS." I mean the fact that ABS didn't even %$*@^ exist in 1985 should make it pretty obvious, but whatever. Then they go and send me an ABS caliper, after I told them I don't have ABS and told them I have a car built before ABS was even available?!?

Summary: don't buy parts from FCP Groton unless you absolutely positively know there is no way they can screw it up, because obviously they, their parts database, and their parts suppliers cannot be trusted.

Thanks for the posts Mcduck and Alex, 'preciate it.

-rt