I was doing some research and came across some useful spec sheets for teh AT 545 MT 643 and MT 653 transmissions. I figured other people might find them useful so I'm posting them here. It lists the gear ratios, rated torque/hp, weight, dimensions, shift sequence, SAE #, etc. and also includes schematics.
Hey DLZ. I just bought a bus with the 545 and then read all the potential problems with this tranny. Information is power. I’ll study up on it and feel better. Thanks for posting these.