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 for 1994-2002 RAM 3500, RAM 2500, 1994-2001 RAM 1500 - 400

Front Axle Actuator, Posi-Lok, Dodge, Pickup, Kit

Part Number: POS-400

4.7 out of 5 stars ( 146 )

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4x4 Posi-Lok Positive Axle Engagement Systems 600

Front Axle Actuator, Posi-Lok, Chevy, GMC, Kit

Part Number: POS-600

4.51 out of 5 stars ( 59 )

Estimated Ship Date: Today

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4x4 Posi-Lok Positive Axle Engagement Systems 500

Front Axle Actuator, Posi-Lok, Chevy, GMC, 4WD, Kit

Part Number: POS-500

4.03 out of 5 stars ( 31 )

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4x4 Posi-Lok Positive Axle Engagement Systems 800

Front Axle Actuator, Posi-Lok, Chevy, GMC, Kit

Part Number: POS-800

4.45 out of 5 stars ( 29 )

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4x4 Posi-Lok Positive Axle Engagement Systems for 1997-2003 F-150, 2004 F-150 HERITAGE - 750

Front Axle Actuator, Posi-Lok, Ford, Kit

Part Number: POS-750

4.84 out of 5 stars ( 25 )

Estimated Ship Date: Today

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4x4 Posi-Lok Positive Axle Engagement Systems for 1984-1991 CHEROKEE, 1986-1991 COMANCHE, 1987-1995 WRANGLER - 920

Front Axle Actuator, Posi-Lok, Jeep, Kit

Part Number: POS-920

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Today

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4x4 Posi-Lok Positive Axle Engagement Systems 450

Front Axle Actuator, Posi-Lok, Dodge, Kit

Part Number: POS-450

4.47 out of 5 stars ( 30 )

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4x4 Posi-Lok Perm-Lok Systems 1100

Front Axle Engagement, Perm-Lok, Jeep, Dana 30/44/60, Kit

Part Number: POS-1100

4.21 out of 5 stars ( 14 )

Estimated Ship Date: Today

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4x4 Posi-Lok Perm-Lok Systems 1000

"Perm-Lok" - Positive Axle Engagement System

Part Number: POS-1000

4.5 out of 5 stars ( 6 )

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RT Off-Road Mechanical Axle Engagement Systems for 1984-1993 CHEROKEE, 1986-1992 COMANCHE, 1987-1995 WRANGLER - RT23003

RT Off-Road Mechanical Axle Engagement Systems for 1984-1993 CHEROKEE, 1986-1992 COMANCHE, 1987-1995 WRANGLER - RT23003

Front Axle Engagement System, Mechanical, Dana 30, Jeep, Kit

Part Number: RTO-RT23003

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Alloy USA Axle Lock Kits for 1994-2004 RAM 1500, RAM 2500 - 450400

Axle Lock Kit, Front, Manual, Hardware, Dodge, Dana 44, Dana 60, 4WD, Kit

Part Number: ALY-450400

4.2 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Alloy USA Axle Lock Kits for 1997-2003 F-150, 2004 F-150 HERITAGE - 450750

Axle Lock Kit, Front, Manual, Hardware, Ford, 5 Lug, 4WD, Kit

Part Number: ALY-450750

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Aug 13, 2025 if ordered today

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Estimated Ship Date: Aug 13, 2025 if ordered today

4x4 Posi-Lok Positive Axle Engagement Systems for 1984-1991 CHEROKEE, 1986-1991 COMANCHE, 1987-1995 WRANGLER - 900

Front Axle Actuator, Posi-Lok, Jeep, Kit

Part Number: POS-900

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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RT Off-Road Mechanical Axle Engagement Systems for 1984-1993 CHEROKEE, 1986-1992 COMANCHE, 1987-1995 WRANGLER - RT23002

Front Axle Engagement System, Mechanical, Dana 30, Jeep, Kit

Part Number: RTO-RT23002

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Alloy USA Axle Lock Kits 450500

Axle Lock Kit, Front, Manual, Hardware, Chevy, GMC, GM 7.2 in. IFS, Kit

Part Number: ALY-450500

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Aug 13, 2025 if ordered today

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Estimated Ship Date: Aug 13, 2025 if ordered today

Alloy USA Axle Lock Kits 450600

Axle Lock Kit, Front, Manual, Hardware, Chevrolet, GMC, 6 Lug, 4WD, Kit

Part Number: ALY-450600

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Aug 14, 2025 if ordered today

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Estimated Ship Date: Aug 14, 2025 if ordered today

Alloy USA Axle Lock Kits for 1984-1991 CHEROKEE, 1987-1995 WRANGLER - 450900

Axle Lock Kit, Front, Manual, Hardware, Jeep, Dana 30, 4WD, Kit

Part Number: ALY-450900

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Alloy USA Axle Lock Kits for 1985-1993 RAMCHARGER - 450450

Axle Lock Kit, Front, Manual, Hardware, Dodge, 5 Lug, 4WD, Kit

Part Number: ALY-450450

Not Yet Reviewed

Estimated Ship Date: Aug 13, 2025 if ordered today

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Estimated Ship Date: Aug 13, 2025 if ordered today

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