I bought two mopars just a few months ago and this being the first mopars I have owned I am learning a lot but this has me stumped, I bought a factory 69 hemi road runner and this 71 big block challenger convertible I have quite a few diehard mopar friends and they were confused to. dose anyone know why ther would be two seat catches I looked in the roadrunner and it only had one set I didn't know if it was common for E body's to have this's?