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