Just bought a 87 sam. I put the transfer case in neutral and used a tow bar to tow it home. Now at home the transfer case will not come out of neutral. I start it up work the clutch , place it in gear , rock it ,noting seems to work. When I look at the drive shafts both turn (front and rear together) when the vehicle moves but the trans will not engage. Before I towed I placed the trans in gear and moved the transfer case shifter until the vehicle moved freely. Did I not have it neutral when I towed it?