Just behind the transmission on the underside there is a crossmember. You'll see that the torsion bars end at this crossmember. The bars are connected to the torsion arms. There are large bolts with special washers on the other side of the arms on each side that go up through the crossmember. You simply turn the nut on the bottom either direction to lower or raise the truck. Make sure to wire brush the top sides of the bolts very thoroughly beforehand and use plenty of Kroil. The bolts are long enough to slam it or raise the front end, no costs or extra parts involved. Beware, each bolt must me turned the exact same and you may have te re-align the front end. Also, the higher you can lift the truck, the easier this is. You may have to raise it and lower it a few times to get to the desired height. Having torsion bars is one of the good sides of a mixed blessing when owning a 60-62! As far as the rear, if it is all original, he will have rear coils. just heat up the original coil springs, or... go spend money at All American classics, Chevy Duty, Jim Carter, LMC, etc... for a new pair of shorter coils. BTW, IMHO the 60-62s with this suspension is one of the smoothest riding trucks G.M. ever made including the modern ones.