2004 Chevy 4x4 HD 2500 Ext cab 4 door with 8.1 vortex gas and HD Ext. filter deep pan auto trans. It was laid on its side at about 80,000 miles and that is when I bought it,It always had a slight piston knock but ran great had plenty of power, I put about 45,000 miles on it and it finally blew up, t... Read More