Locker options for E350 with RSC
I have been searching for have not found exactly what I want so I thought I would ask again. I have a 2012 E350 12 passenger wagon with RSC. 5.4L engine if that matters. I have only owned the van for a couple months but 6 times I have left the hard, and 6 times I have been stuck. I am not talking hard 4x4 stuff here. Wet grass and fields. 4 wheel conversion would be nice but its not going to happen today. A locker would probably do what I need. What are my options. from lowest price to best. With Part numbers or links. I am concerned about the RSC working with a mechanical locker. Will a mechanical locker allow the RSC to work as it should.