46re clutch pack specs
The direct clutch clearance is dependent on the shift timing release of the kick down band. So it depends on what shift modifications you do to the valve body and kick down servo.
When you tighten the clearance on the direct clutch, it will apply faster. If the band releases slow, you will get binding with both applied.
If you have modified the valve body and the servo to release quicker, you can run .060-.070 clearance with no problems. The factory set the clearance looser at .070-.120 because the servo releases slowly and they want a smooth shift going into high.
You can tell when you are binding as the shift is hesitant and has a braking affect. When the timing is right, it snaps much like the first-second shift.
The easiest way is to err on the loose side. If you know how to set up your valve body and servo right, you can go tight.