Well, I will probably be getting my Grandpa's 1996 Chevy 1500 4x4 LS Silverado extended cab with 6' step side bed as my first truck (next winter). My question is...does anyone else out there use a p/u with a step side bed for work? How many cu yds of material could I get into the bed if I put 3' sides on it? It has the 4.3L gas engine in it, is this enough power to move around a lot of mulch (however many cu yds I can fit in the bed)? I know this isn't the ideal work truck, but hey...it'll be my gift from my Grandparents for my 17th B-day .