See the picture (from flea-bay) with the red square. Hidden is a U-shaped end of the brake lever (I didn't look up the proper name). Here is how I do it. Take off brake drum. Need a brake spring tool to take top springs off. Be careful not to put a lot of force on the wheel cylinder and damage the inner seals. Remove the 2 brake shoe retaining clips/springs. Both hands to pull the shoes out and do a 180 to release the bottom spring tension. The adjuster usually falls out. You now have good access to the brake lever. I use grips to pull the spring back and lift the cable and stop out of the U-shaped end.
"Adding CFM to a truck will only help at engine speeds you don't want to use." "I found there was nothing to gain beyond 400 CFM."