I am needing to rebuild my tranny for my 1988 jeep cherokee xj, it has a had time shifting into reverse, takes a long time to get going. My thought is that the torqe converter is draining its fluid and is having to recharge when it starts and is not allowing me to shift. so I want to tear it down and make sure that I dont have a bunch of metal shaving everywhere. anyone know where I can find the service manual for Aisin-Warner AW-4 4-speed automatic trans?