Ok so im finally going to install my lift 6" superlift lift kit. I bought it off another member who put it in for a very short time and removed it. I went through the kit and everything to make sure I had everything. My question is if I remember correctly it didnt say anything about a spacer or anything for my rear driveshaft to exend it slightly, but when I was watching trucks this weekend the kit they had, had on and I was wondering if I am supposed to?