One of the cool things about this service manual is that in 1959 GE changed a significant portion of the design of their dryers by eliminating the separate stationary drum back (like Kenpools) and changing the heater coils to a ring behind the drum. There were other changes as well, but this service manual has two parts breakdowns, schematics and service instructions for both versions of each model. It's two service manuals in one and it's already helped me with the dis assembly and reassembly of my latest Clothes Conditioner.