4x4 Posi-Lok 1000
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4x4 Posi-Lok View all 4x4 Posi-Lok products
Perm LokThe Perm-Lok permanently engages 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.
Installation is super easy and can be completed in approximately 10 minutes.
Ideally suited for fleet operators, and emergency vehicles.
- 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.
This product fits the following applications:
- 88-98 Chevy 1500 Pickup 4WD
- 88-98 Chevy 2500 Pickup 4WD
- 88-98 Chevy 2500 Pickup Light Duty 6 Lug 4WD
- 88-98 Chevy 3500 Pickup 4WD
- 92-98 Chevy Suburban 1500 4WD
- 92-98 Chevy Suburban 2500 4WD
- 92-98 Chevy Tahoe 4WD
- 88-98 GMC 1500 Pickup 4WD
- 88-98 GMC 2500 Pickup 4WD
- 88-98 GMC 2500 Pickup Light Duty 6 Lug 4WD
- 88-98 GMC 3500 Pickup 4WD
- 92-98 GMC Suburban 2500 4WD
- 92-98 GMC Yukon 4WD