Under load or accelerating the tranny seems to be working fine. At cruising speed or light pedal pressure, the tranny is jumping in and out of lock up constantly.
If I downshift ( more pdel pressure ) it's ok, or speed up ( above the speed limit ) it keeps doing it.
Tried adjusting the linkage on the tranny ( BD Pressure Loc ) and cleaned the accuating solenoid. No difference at all.

Any ideas

 

You need a aftermarket tranny controller like a tow loc or a TorqLoc. If it were me id go with the TorqLoc