8 Pack, You have the right idea with the B-Body read end, they work great.. I put one in my 74 Cuda four years ago and it makes tire selections real easy. I am running 275/60-15 tires with 1" between the tires and the fender lip, and 2" between the tires and springs. I used the Mopar 3/4" offset front spring mounts for SS springs along with SS springs and I made a pair of 3/4" offset stock length shackles for the rear.