I belive that that this locker had two pins with the little round backing plates, I talked to Virgil at foothill off road a while ago and got three different kits that all didnt work. the problem was not the sbrings, all of the kits had the double springs and backing plate, but that the pins were too short and wouldent allow the locker to completely enguage. One thing that I neglected to mention about the locker is that it uses uses retaining pins that are tapped into a hole above the springs to compress them. I installed a lock rite in my old jeep wagoneer and all i had to do was put the pins and springs in a slot in the side of the inner part of the locker, there were no retaining pins. I will try to get some pictures soon.