I NEED HELP!!!!! im taking my 1998 c-1500 2wd short bed reg cab chevy with a 5 speed manual transmission and im swapping a 1998 5.7 vortec motor into it the trany in the parts truck was a auto. i need help with the transmission, i have heard they will mate fine but the clutch in the 4.3 and the flywheel is different does anyone have any suggestions??? anything will help