Zone Offroad PSL400 4x4 Posi-Lok Cable-Operated Axle Disconnect System

The Zone Offroad PSL400 is a cable-operated axle engagement system that replaces the failure-prone vacuum-operated Central Axle Disconnect (CAD) system. This innovative system puts the driver in control of front axle engagement from inside the cab, providing reliable 4WD performance when you need it most.

How It Works:

After engaging the transfer case, a simple one-inch pull of the cable slides the shift fork and collar to connect the right front axle to the intermediate shaft, fully engaging 4-wheel drive. Simply reverse the procedure to disengage 4-wheel drive. Unlike factory systems, the Posi-Lok will not disengage when the ignition is turned off or when the differential is submerged in water.

Key Features:

• High-strength cast aluminum housing for the central axle disconnect system
• Heavy-duty cable actuator provides reliable engagement control
• Complete wiring system ensures 4WD dash indicator light functions properly
• Enables 2-wheel drive low range capability for trailer maneuvering with bind-free steering
• Reduces front differential wear and right axle breakage
• Compatible with front lockers - disengage passenger side to eliminate wheel hop during turns
• Works with manual or electric transfer cases
• No internal differential work required
• Installation typically completed in 1-2 hours with basic hand tools

This system provides unique benefits not available with factory equipment, including the ability to run 2WD low range for increased torque at the rear axle while maintaining the steering freedom of 2-HI mode.