I have an 08' Dodge C & C with a "wonderful" Aison Transmission in it. I have full H & S on my engine - I leave my black maxx on no power when I am pulling. The problem that I have is: I pull 20,000 lbs with my truck and the transmission shifts too fast even in the tow-haul mode. The engine is always lugging. It's driving me crazy!! High EGT temperature. Is there any way to fix this or do I need to sell this truck? I read other forums - this is a problem with the Aison transmission, but no one has a solution.