Colin as 46GMCPU SENT I HAVE A 41-42 SHOP MANUAL WHICH SHOWS YOURS AS A 9300 FOR 1/2 TONS.THERE IS ONE PERSON WHO MIGHT KNOW WHAT YOU WANT TO KNOW ABOUT THE BED. HIS NAME IS SCOTT AT SCOTT'S SUPER TRUCKS IN PENHOLD ALBERTA. THE PHONE # 403-886-5572.
HE HAS CHEVY/GMC'S FROM 30'S TO THE 80'S. SELLS PARTS FOR ALL YEARS. AND HAVE YOU LOOKED ON THE FRONT RIGHT FRAME RAIL UP BY THE SPRING SHACKLEFOR WHAT IS STAMPED THERE?
VALENTINE
