Originally Posted by Wirespokes
Something must have been weird with your second caliper - there are no lefts or rights. They're all the same. I've never had an issue with a caliper not working on a particular side. Also, if they were handed, I'm sure they would have been stamped or some indication would have been placed on them.
Next time you get the chance to look at one examine the bottom of the two holes. The one for the bleed nipple has a seat cut in it for the bleed nipple.
Mind you, I just went to Max's Parts Catalog to prove my point with the part number for the right side being different from the left only to find out that it isn't.
I know I didn't imagine the difference or I wouldn't have gone through the trouble of making the tooling for cutting the seat.
At least I sure hope so................