my intentions were to build my own frame but without knowing how long the frame is on that truck the width of the frame which i am sure is the same as a 3/4 ton. i just really dont have acces to the 3/4 ton frame since the cab is back on it. what s10 frame would i use for the 1/2 to pickup. ive heard extended cab, long beds, and reg cab. i thought that the exteded cab and long beds worked good for 3/4 tons not 1/2 tons. fumblin what did you use on your 46