Manual Front Axle 4WD Actuator Kits

Want to bring more control, confidence, and reliability to your 4x4 truck or SUV? Summit Racing Equipment carries a variety of manual front axle engagement systems for...

Want to bring more control, confidence, and reliability to your 4x4 truck or SUV? Summit Racing Equipment carries a variety of manual front axle engagement systems for GM, Ford, Dodge/Ram, Jeep, and more.

These systems are available in a few different styles, and they function differently.

Cable-actuated

These systems are available in a few different styles, and they function differently.

Cable-actuated

Cable-actuated manual front axle engagement systems from 4x4 Posi-Lok, Alloy USA, and RT Off-Road replace your rig’s vacuum or electric front axle actuator with a simple, durable push/pull cable. That means your front axle is engaged when you want it to be, every time. As a bonus, they also allow you to shift into low range without engaging the front axle, sending torque to the rear axle only. The result is bind-free steering and excellent maneuverability.

Perm-Lok

Perm-Lok systems from 4x4 Posi-Lok permanently engage the central axle disconnect (CAD) system, eliminating a possible failure point from your four-wheel drive system. Your front axles, differential, and driveshaft are permanently coupled to the front wheels, improving reliability and 4x4 readiness, but power is not sent to the front wheels until the transfer case is engaged. These kits are popular with fleet operators, or on vehicles that are regularly used off road.

2Low Unloc

2Low Unloc kits from BD Diesel are electrical or vacuum/electrical systems that let you unlock your front axle in low range, allowing sharp turns and full maneuverability without driveline binding or front axle hop. This is very useful when maneuvering trailers or heavy loads in tight spots.

Browse Summit’s selection of manual front axle engagement systems to find the right setup for your vehicle.

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4x4 Posi-Lok Positive Axle Engagement Systems

Replace your slow, unreliable vacuum or electric front axle engagement system with one of these 4x4 Posi-Lok cable activated systems. The Posi-Lok systems give you direct control of your front axle right from your cab, so they will engage every time. They have a short 1 in. throw to make shifting on the fly easy, and as an added bonus, a 2WD low-range to give you the rear-wheel torque of 4-LO, and the bind-free steering action of 2-HI.

4.57 out of 5 stars ( 336 )

$174.95

RT Off-Road Mechanical Axle Engagement Systems

RT Off-Road mechanical axle engagement systems replace the vacuum actuator with a cable operated actuator that puts the driver in control of the engagement from inside the cab. The axle engagement is much more reliable since it is directly controlled with the cable. Kits are available for Jeeps with a lift kit up to 3 in., and for lifted applications 3 in. or higher.

3.67 out of 5 stars ( 6 )

$133.99

4x4 Posi-Lok Perm-Lok Systems

4x4 Posi-Lok Perm-Lok systems permanently engage the central axle disconnect (CAD) system and couples both front axles. Once installed, the front axles will not pull until the transfer case is engaged. They are ideally suited for fleet operators, and emergency vehicles. Plus, installation is easy and can be completed in approximately 10 minutes.

4.3 out of 5 stars ( 20 )

$94.99

Alloy USA Axle Lock Kits

Alloy USA axle lock kits affords 4WD when you need it. Your OE vacuum disconnect systems are prone to failure. These permanent replacements allow you to manually engage the front axle from inside the cab. A simple pull of the cable ensures that you will have 4WD for as long as the transfer case is engaged. Always have a backup plan with Alloy USA axle lock kits.

3.82 out of 5 stars ( 28 )

$174.99

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