TWISTED DIESEL TRANSMISSION REFERENCE GUIDE
Clutch pack modifications: refers to extensive machining and matching of parts. Many hours of testing have gone into developing the strongest and most durable clutch packs to be used in higher horsepower applications.
Pump modifications: refers to some machine work and replacement of parts to improve cooling flow, global line pressures and converter charge pressure.
Valve body modifications: refers to some machine work and replacement of parts to improve clutch holding pressure and improve shift timing.