3/4 ton brake drum confusion!

[bobs409]

I'm very confused. I ordered new rear brake drums from the Autozone.com website for my truck and they just arrived. Problem is, they don't look like the right ones to me. ?

I have a 1971 C20 with what I believe is an Eaton rear. (it has the large salad bowl center and the bolts are on the front side)

On the website, they have 2 possibilities, one with a Dana rear and one without. I clicked the one without and ordered them. (see pics below) The ones shown are 11 5/16" X 2 3/4"

I haven't had my drums off for a few years (truck is off the road) but when I did have them off last, I had to remove the center hub and pull the axle to get the drums off. The ones below look like that wouldn't need to be done.

Questions are;

1) Do I have an Eaton rear as I described above?
2) Are the drums in the pics correct? If not, what are they correct for?


Thanks in advance for any help...


Bob