Long brake shoe in back

[Baime]

I recently rebuild the rear brakes on my 71 C2500, and other than some troublesome bleeding issues, they seem to be working good.

My cousin asked me if I put the brake shoe with the longer pad in the rear position.

Oh oh, I wasn't paying attention to this. All four shoes looked identical, but I was concentrating on the metal part of the shoe, and all of the holes and shape. They all seemed the same when I inspected them.

My question:
If two of the shoes had longer pads, and I happened to put the shoe with the long pad in front, what will happen?

I'm trying to decide if it is worth removing the drums, and possibly reassembling all of the brake components if I have them installed incorrectly.

Note: One of my drums got warm on my first test drive, and I backed off the mechanical adjustment on that side until I observed a gap between the rear brake pad and the inner surface of the drum. (I could see this gap through the slot in the backer plate. The other side already had a gap, and the drum was cool on that side.

Could having a longer brake shoe pad in front cause the auto brake adjust system to adjust the rear shoe too tight? I will keep monitoring this for a warm drum.

Thanks for your comments.

JP