Are you sure the truck is a 1/2-ton? The one picture under the rear shows the springs outside the frame rails, as has been pointed out already. The frame rails look parallel instead of flared out as 1/2-tons are. Half-ton springs are under the frame. How long is the bed? Half-tons are 6 1/2' and 3/4-tons are approx. 7 1/2' long. Do the front wheels have 8 studs?
Looking closer at the picture I can see the middle stake pocket in front of the fender. You sir have a 3600 3/4-ton. Congratulations! I like 3/4-tons.
Last edited by Frank50; 03/02/2019 5:29 PM.