Originally Posted by The Ned
If there are no badges, the frame would tell you if it's a 1 ton. The one ton frame is significantly thicker and bigger. The steel in a 3/4 ton is 3/16 thick while that used in the 1 ton frame is 9/64. See The Chevy restoration kit for more details.

Welcome to the Bolt.

Better check those thicknesses, 3/16 is heavier than 9/64.