I have been looking at what all the different suspension lift kit companies offer for a 1-Ton 4X4, and SkyJacker and SuperLift seem to be the only companies that offer lift kits for 1-Ton trucks. I have looked at BDS and Tough Country, but they do not offer anything for 1-Tons (only 3/4 Tons). I am interested in installing a 4" lift on my 1-Ton 4X4 Crew Cab, and SuperLift only offers a 3" and 5" lift, but SkyJacker has a 4" lift. After seeing some of the discussions regarding shackle flip lift kits and towing, I have decided not to go with a shackle flip lift since I will be doing some towing with my rig. I am also concerned about using arched 4" springs in the rear as well for towing because they might be too springy for towing. One solution I was thinking of was to purchase a set of new OEM, 9 leaf, 3500 Lb leaf springs for the rear (which is what truck came with factory) from JC Whitney, a set of billet steel 4" lift blocks for the rear, and a set of custom 4" lift springs from Alcan Springs for the front. I was thinking of going with billet steel lift blocks because cast iron lift blocks may be too soft of a steel for towing. One question I have is does anybody know of a company that offers stronger steel lift blocks? Or...I could do the OEM rear springs, billet steel lift blocks, and SkyJacker 4" lift kit... What do you think?????