Penetrating oil and frame on jack stands and it will eventually get easier to turn. I backed mine almost all the way out and coated it with 3 in 1 oil. Ran it back in to approximately where it was, lowered the car and the 1/2 in ratchet was all that was needed.
Craig

2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado