If this Wag has the two-piece Dana 44s on the rear, you need to remove the large nut in the center of the drum. If you have a normal 44, try to access the adjuster through the backing plate to back off the brake shoes.
73 Jeep J4000 360 .040 over, Summit K8600 Cam, Edelbrock Manifold and 750CFM 4V TH400/1339 QT
78 Cherokee Chief- Hunting Property Rig
05 Grand Cherokee- 3.7 V6 5 speed auto