CCC 6537 Lockheed MK1 7 ins Brake Shoes Lockheed MK1 brake shoes 7 ins x 1 1/4 ins, suits std 7 ins drum with rod operation. These early type shoes that uses a snail wheel type adjuster, see small notch on one shoe.
CCC 6542 Lockheed 8 ins Brake Shoes Lockheed Brake shoes 8 ins x 1 1/2 ins, suits std 8 ins drum with rod operation. 1 pair of shoes does one wheel, to replace both sides 2 x CCC 6542 will be required.