If you want to do it "all", then you should get a spring kit, and new wheel cylinders. Also get the drums turned at your local brake or machine shop. Get a bottle of brake lube to lube the contact points and your star adjuster. A good brake tool kit will make the job a LOT easier. Something like this

Don't forget you'll have to bleed your brakes if you replace the wheel cylinders. Best way to do it is with a friend, but if your alone, get a glass bottle, and some tubing that fits over your bleeder screw tightly, fill the bottom of the bottle with brake fluid, submerge the end of the tube in the brake fluid, hook the other end to the bleeder, crack the bleeder valve open, and pump the brakes until the bubbles go away.


How does the 3rd member to axle housing seal look? If its leaking, nows the time to replace that too. You can use a paper seal, or RTV silicone, or both.


Drain and fill the diff with some good gear oil.


Flush the brake fluid while your at it as well.

Inspect your rear wheel bearings too. Look for play and listen/feel for scratchy noises.