Posi-Lok Cable Actuated Front Axle Disconnect

Posi-Lok Cable Actuated Front Axle Disconnect | PSL800 | GM 9.25" | 1988 - 1998 Chevy / GMC / K2500 / K2500 8 Lug Truck & Suburban

Manufacturer: Posi-Lok

Part # PSL800 / 800

4×4 Posi-Lok replaces the thermal linear actuator with a cable operated actuator that puts the driver in control of the engagement from inside the cab. After engaging the transfer case, a one inch pull of the 4×4 Posi-Lok cable slides the shift fork and collar to connect the right front axle to the intermediate shaft and 4-wheel drive is engaged! Simply reverse the procedure to disengage 4-wheel drive. 4×4 Posi-Lok also works great with lockers! When the front axle is locked, you can disengage the passenger side in order to make turns without wheel hop.

Click HERE to download installation guide

Vehicle Fitment:
1988 - 1998 Chevrolet K2500 8 Lug 4x4
1988 - 1998 Chevrolet K3500 4x4
1988 - 1998 GMC K2500 8 Lug 4x4
1988 - 1998 GMC K3500 4x4
1992 - 1998 Chevrolet Suburban 2500
1992 - 1998 GMC Suburban 2500

Vacuum Actuator Problems
The colder the temperature, the longer it will take to engage.
If the front differential becomes submerged, the TLA temperature will cool and the 4-wheel drive will disengage.
The TLA unit can cause excessive wear on internal components in the differential and may cause other electrical problems.

FEATURES:
4x4 Posi-Lok reduces front differential wear and right axle breakage.
4x4 Posi-Lok provides 2-wheel drive low range, giving the vehicle 4-LO torque at the rear axle with bind free steering only available in 2-HI. This feature is not available with factory systems and is beneficial when maneuvering trailers.
4x4 Posi-Lok will not disengage when ignition is turned off or the differential is submerged.
4x4 Posi-Lok is compatible with manual or electric transfer cases and installation can be completed in one to two hours with basic hand tools. No internal differential work is required.

Kit Contents:
New CNC machined brass cable housing for the central axle disconnect system
Dash bracket discretely locates handle to an easy to reach location.
Easy to follow instructions make installation easy

Q&A
What is 4x4 Posi-Lok?
4x4 Posi-Lok is the patented (Patent No. 5,605,213) cable activated engagement device designed to replace the failure prone OEM (Original Equipment Manufacture) vacuum and electric front axle engagement systems. 4x4 Posi-Lok is not a posi-trac or locker. 4x4 Posi-Lok is simple and easy to install and allows you to engage your front axle from inside the cab. After engaging the transfer case, a one-inch pull of the 4x4

Posi-Lok cable ensures the front axles are connected. This system puts the driver in direct control of the 4-wheel drive front axle engagement.

What are the benefits of 4x4 Posi-Lok?
4x4 Posi-Lok reduces front differential wear and right axle breakage.
4x4 Posi-Lok provides 2-wheel drive low range, giving the vehicle 4-LO torque at the rear axle with bind free steering only available in 2-HI. This feature is not available with factory systems and is beneficial when maneuvering trailers.
4x4 Posi-Lok will not disengage when ignition is turned off or the differential is submerged.
4x4 Posi-Lok is compatible with manual or electric transfer cases and installation can be completed in one to two hours with basic hand tools. No internal differential work is required

How difficult is it to install a 4x4 Posi-Lok?
4x4 Posi-Lok can be installed under two hours with simple hand tools.

Why should I replace my O.E. actuator?
The weak link is eliminated. Vacuum and electric actuators tend to fail for various reasons leaving you stuck! The 4x4 Posi-Lok puts the driver in control of the 4 wheel drive engagement.
The 4x4 Posi-Lok provides the benefit of 2 wheel drive low range by simply not engaging the front axle. This is beneficial on the trail when maneuvering in tight corners or when maneuvering trailers/campers.

Is the 4x4 Posi-Lok a locking device?
No. The 4x4 Posi-Lok replaces the failure prone O.E. electric and vacuum devices to connect the intermediate axle shafts. A locker is installed in the differential.