[jmking9]

My 70 swb is lowered 4.5-6. I have seen trucks with 5-7 static drops. I wouldn't want to be any lower than I am if you plan on driving the truck alot.

As far as the parts, I used Early Classic Enterprises (ECE as it reffered to here) and would highly recomend them to anyone. Quality, service, and knowledge well above the competitors. Classic performance Parts (CPP) is another place you could look at. I have had good luck with them, although there are others that haven't. There are several others that sell lowering kits. These are just the two that I have bought parts from. Search around the site you you will find tons of info and pics that include suspension and wheel/tire specs.