I recieved my instalation manual for the pump and I have a few questions about it. I was wondering if someone could explain how how the cooling system operates in conjunction with the pump. Can I use an anti-freeze solution when the pump is not in operation, and what happens if you want to put the pump into service? Does the anti-freeze solution get pumped out of the system? Also the harmonic balancer has been removed and in it's place just a fan pulley and drive shaft has been installed. How does this affect the performance of the motor's operation? Can this truck be driven at normal operating speed for its type or is it compromised due to the addition of the pump? I would welcome any help from anyone who has experience with this type of pump. Thanks Joe B.