Swapping out king pin

Should be easy if the new one is made to replace old unit. Loosen bolts and remove all but a couple, back truck under old hitch and lower front of camper to let kingpin rest on truck. Mount new kingpin in hitch on truck and back under front of camper. Line up height by raising/lowering front of camper, line up forward or reverse and reinstall bolts. Retorque bolts after checking for level on hitch and it should be done.