I just recieved a 1980 3/4 ton 2wd w/ 454 auto, I was originaly told that the front end will swap over? My truck had a 350/350 combo w/373 posi rear end. The truck is now bare because I would like some options bigger motor, P/S, Brakes... I do own a LS6 454 w/ 4speed std. I would like some advice of my best options? I'm I dreaming or is this possible.