How do you retract the brake shoes to remove drum

if you can see the spur wheel through the slotted hole, you're 1/2 way there.... there is a locking arm that needs to be pushed outwards, as this is what keeps that wheel from being able to turn freely in 1 direction, and that being off.... if you can get a flat blade screw driver into the access hole, you will notice it will turn and "click" one direction.... (clockwise, or counter-clockwise) if it turns freely and clicks, your tightening the shoes..... so not the direction, and you will need to reverse it. from here you need a smaller pick, or pocket-size screwdriver to push away the locking arm that sits against the spur wheel.... turn the direction opposite of whatever you found that made it "click".... from here, the drum should turn smoothly.... should be no resistance between drum and the brake shoes.... if you find this to be true, but still cant get the drum off, it is most likely seized onto the hub, and easiest way to remove is by shock.... i hope you have good aim, as you will need to hit the drum between the wheel studs to "shock" and disturb the built up rust to break free.... also, verify the e-brake cables aren't seized, as this may be the reason the rear drums don't turn.... let us know what you find.