You’re right, 3/4 ton. Easy to confuse if you’re not informed. 1 tons have 4 stake pocket holes. The dead give away is that 1 tons have a “little” stake pocket sitting above the fenders and more distance between the back of the rear fender to the tailgate.
You can see it in this picture:
https://photos.app.goo.gl/5noMpfyv5v87r7ni7