those do look like the right ones for the use with stock rotors. i used a loaded pair by morse from autozone. install was easy, just had to trim the dust shield to allow them to fit. the only difference i noticed in braking was that it was easier to lock up the brakes. didn't notice any difference in stopping power or resistance to fade, tho i never really put that much stress on the stock or toyota brakes. if i had to do it again, i would use the calipers from the newer toyota trucks with the vented rotors from the 300zx...
it up the search button, there was a thread on this just a couple weeks ago. i posted links to both types of calipers from autozone.. good luck with ur project