Good evening all, I just picked up a 99 2500 v10 auto 4x4 and I can't seem to get it into 4x4 low, 4x4 high or 4x4 neutral. The truck is in 2Hi right now and I can shift into 4Low but the shifter doesn't want to stay in 4Lo. I cannot pull the lever back at all. My truck does have a 3" body lift...