Paint the bak-up plates.
Add a small amount of the brake grease you get with new shoe to the bak’g plate, only the points have contact.
When off-raoding and especially in wet conditions, take the rear brakes apart every month or so and repeat the above process.
When cleaning things up, do some preventive maintenance, check the springs, all of the wear points, look for leaks from the Slave Cylinders and axle seals, clean out any rust buildup, grease the E-Brake Cables.
That is just some guessing on what to do, use your head and if wheeling it is the cost to play.
4x4, 5sp, Std Cab, Stepside, E4 Red
4” Lift - Coil-Overs, 6” SkyJacker Leafs - No Blocks (Mistake)
31 Spline FX4 Rear Axle, 4.56s and OX Locker, Hurst Shifter w/Optional Stick and "Made by Grev" alignment adapter