My 66 C-10 seems to be sagging a little on the left rear side, you can see it pretty clear from the rear. I know the springs are old & worn out, I have new shocks but the rear suspention has no life left. This is a beat up daily driver that I brought back to life after sitting in a field for ever. I love the lower stance of the pickup due to the old springs, but I know that the new springs on the rear will probably pick it up some. If it does, can I cut coils off for the springs & if so how much at a time & how do I do it? Also what is the best procedure for changing springs? Thanks guys!