I recently rebuilt my 741 Power Loc Clutch typ differential and as instructed by Doctor Diff I applied pleanty of LS additive to the clutches and plates. Everything went together smoothly and the car is back on it's wheels.On the street, under low acceleration or even idling around the rear diff is super tight (locked). I have not had a chance to put many miles on the car yet but is this normal and should I expect the dif to loosen up some or do I need to be concerned about how tight the diff is?

Thank you in advance.