BD’s exchange Full Manual valve bodies are
modified, tuned and tested to provide optimum performance on the track. These
units feature increase line pressure, revised manual valve design,  and a custom manual seperator plate. The
end result is improved shift quality, increased clutch holding capacity, and
extended transmission life.  Plus, Full
Manual control of gear selection and lock-up available in all forward gears.

Modified, tuned and tested to provide optimum performance
Revised valve design
Larger oil ports
Proprietary governor piston dimensions
Hand-lapped surfaces prevent internal leakage
New trim valves increase mainline pressure
Increased clutch holding capacity
Full Manual control of gear selection
Lock-up available in all forward gears