Got to replace the rears on my truck, new shoes, drums, and wheel cylinders. Any way to tell what size brakes mine are before taking them apart? The parts place I am using needs to order them for me, so I would hate to take everything apart to measure it just to let the truck sit until the parts show up. I'm guessing that I don't have an option here, but I am hoping. My truck is a 75 K-10. Thanks in advance for any help.
p.s.- It says I have either 11"x2" brakes or 11 5/16"x2 3/4".