The farther I dig into this, the more confusing it gets! Ahhhhhhh!
I have a 65 GMC 1000 Series SWB Fleetside truck that I am looking at replacing the rear leaf springs, problem is, i'm not sure if the ones on there are the correct ones to start with. When looking at replacement springs online, the companies that I have looked at thus far says the alignment pin for the rear end is 26" forward, 26" aft. I looked at mine last night and they are 24" forward and 28 aft". If the websites are correct, this indicates that these spring are from a '67-'72, and possibly older. The springs have 8 leafs on them. I'm trying to put the correct ones back in there so any and all help is appreciated!