In this video i show how i found a no reverse hot problem on a ZF5HP24. One very important step to rebuilding is air checking the clutch circuits, make sure there are no leaks, doing that is how i found my problem with this transmission. I also air check a 722.6 at the end of the video, i ended up using back the original sealing rings because the new ones in the kit seemed to be leaking too much. Its best to air check the drums on the bench and when assembling the trans air check the circuit before the valvebody gets installed. Enjoy and please subscribe. Gary