I have the same kit. It has one thin a-body sandwich mount and one thick mount. I know the rubber isnt going to last long on my car so I replaced the thing driverside with a Moroso steal mount.
Like stated above the bolts that come with the kit are to short so I needed to reuse the old bolts. Also it didnt come with any nuts to hold the mounts to the K frame .
I'll take some pictures later and post them. I havent installed the motor yet.