I have a 97' F150 with esotf 4×4 and an automatic transmission.the 4×4 is halfway engaged..the hubs and halfshafts are in 2×4 byut the driveshafts are both engaged along with the transfer case and front differential..I've tested the silenoids vaccuum lines, electric wires and vaccuum reservoir.all good..leaves the actuator and the lever it activates..now I believe its thet lever thats stuck.How can I unstick it..Can I manually turn the transfer case?? What about the synchronizer??