Lonnie,
Thanks for the info on your rotors and the links to the photos, which confirm that the caliper is mounted rear of the center of wheel.
It seems that NAPA has a problem with their on-line parts catalog, as all the components should fit together but after going through a few boxes of them it was obvious they wouldn't. Luckily this used to be an independant parts store and they were able to look it up in the books, and had to pull what NAPA thinks is the wrong part [2WD caliper] and it allows the pads to go over the rotor. Now I have to hope the offset is correct.
So much for my panic last night, but I appreciate the learning....
