Hey everybody ! I'm new to the Jeep world and could use some help. I bought a '93 Wrangler Sahara Edition and the 4WD front axle will not engage. The tranfer case seems to working fine but the vacuum actuator is not. A couple of lines are broken off. All 4 lines are black and are hard to follow. Has anyone got a diagram of how and where the lines go? I checked the actuator and it will work. I just don't how to check everything else. Thanks for your help !!