Perm Lok

4.5 80
  • 4x4 Posi-Lok 1000

  • Everyday Low Price $67.67
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4x4 Posi-Lok    View all 4x4 Posi-Lok products

Perm Lok

The 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.

Product 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.

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
Application by vehicle year

Manufacture Warranty Information

Product fits the following applications

  • 1988 Chevy 1500 Pickup 4WD
  • 1989 Chevy 1500 Pickup 4WD
  • 1990 Chevy 1500 Pickup 4WD
  • 1991 Chevy 1500 Pickup 4WD
  • 1992 Chevy 1500 Pickup 4WD
  • 1993 Chevy 1500 Pickup 4WD
  • 1994 Chevy 1500 Pickup 4WD
  • 1995 Chevy 1500 Pickup 4WD
  • 1996 Chevy 1500 Pickup 4WD
  • 1997 Chevy 1500 Pickup 4WD
  • 1998 Chevy 1500 Pickup 4WD
  • 1988 Chevy 2500 Pickup 4WD
  • 1989 Chevy 2500 Pickup 4WD
  • 1990 Chevy 2500 Pickup 4WD
  • 1991 Chevy 2500 Pickup 4WD
  • 1992 Chevy 2500 Pickup 4WD
  • 1993 Chevy 2500 Pickup 4WD
  • 1994 Chevy 2500 Pickup 4WD
  • 1995 Chevy 2500 Pickup 4WD
  • 1996 Chevy 2500 Pickup 4WD
  • 1997 Chevy 2500 Pickup 4WD
  • 1998 Chevy 2500 Pickup 4WD
  • 1988 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1989 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1990 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1991 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1992 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1993 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1994 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1995 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1996 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1997 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1998 Chevy 2500 Pickup Light Duty 6 Lug 4WD
  • 1988 Chevy 3500 Pickup 4WD
  • 1989 Chevy 3500 Pickup 4WD
  • 1990 Chevy 3500 Pickup 4WD
  • 1991 Chevy 3500 Pickup 4WD
  • 1992 Chevy 3500 Pickup 4WD
  • 1993 Chevy 3500 Pickup 4WD
  • 1994 Chevy 3500 Pickup 4WD
  • 1995 Chevy 3500 Pickup 4WD
  • 1996 Chevy 3500 Pickup 4WD
  • 1997 Chevy 3500 Pickup 4WD
  • 1998 Chevy 3500 Pickup 4WD
  • 1992 Chevy Suburban 1500 4WD
  • 1993 Chevy Suburban 1500 4WD
  • 1994 Chevy Suburban 1500 4WD
  • 1995 Chevy Suburban 1500 4WD
  • 1996 Chevy Suburban 1500 4WD
  • 1997 Chevy Suburban 1500 4WD
  • 1998 Chevy Suburban 1500 4WD
  • 1992 Chevy Suburban 2500 4WD
  • 1993 Chevy Suburban 2500 4WD
  • 1994 Chevy Suburban 2500 4WD
  • 1995 Chevy Suburban 2500 4WD
  • 1996 Chevy Suburban 2500 4WD
  • 1997 Chevy Suburban 2500 4WD
  • 1998 Chevy Suburban 2500 4WD
  • 1992 Chevy Tahoe 4WD
  • 1993 Chevy Tahoe 4WD
  • 1994 Chevy Tahoe 4WD
  • 1995 Chevy Tahoe 4WD
  • 1996 Chevy Tahoe 4WD
  • 1997 Chevy Tahoe 4WD
  • 1998 Chevy Tahoe 4WD
  • 1988 GMC 1500 Pickup 4WD
  • 1989 GMC 1500 Pickup 4WD
  • 1990 GMC 1500 Pickup 4WD
  • 1991 GMC 1500 Pickup 4WD
  • 1992 GMC 1500 Pickup 4WD
  • 1993 GMC 1500 Pickup 4WD
  • 1994 GMC 1500 Pickup 4WD
  • 1995 GMC 1500 Pickup 4WD
  • 1996 GMC 1500 Pickup 4WD
  • 1997 GMC 1500 Pickup 4WD
  • 1998 GMC 1500 Pickup 4WD
  • 1988 GMC 2500 Pickup 4WD
  • 1989 GMC 2500 Pickup 4WD
  • 1990 GMC 2500 Pickup 4WD
  • 1991 GMC 2500 Pickup 4WD
  • 1992 GMC 2500 Pickup 4WD
  • 1993 GMC 2500 Pickup 4WD
  • 1994 GMC 2500 Pickup 4WD
  • 1995 GMC 2500 Pickup 4WD
  • 1996 GMC 2500 Pickup 4WD
  • 1997 GMC 2500 Pickup 4WD
  • 1998 GMC 2500 Pickup 4WD
  • 1988 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1989 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1990 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1991 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1992 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1993 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1994 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1995 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1996 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1997 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1998 GMC 2500 Pickup Light Duty 6 Lug 4WD
  • 1988 GMC 3500 Pickup 4WD
  • 1989 GMC 3500 Pickup 4WD
  • 1990 GMC 3500 Pickup 4WD
  • 1991 GMC 3500 Pickup 4WD
  • 1992 GMC 3500 Pickup 4WD
  • 1993 GMC 3500 Pickup 4WD
  • 1994 GMC 3500 Pickup 4WD
  • 1995 GMC 3500 Pickup 4WD
  • 1996 GMC 3500 Pickup 4WD
  • 1997 GMC 3500 Pickup 4WD
  • 1998 GMC 3500 Pickup 4WD
  • 1992 GMC Suburban 2500 4WD
  • 1993 GMC Suburban 2500 4WD
  • 1994 GMC Suburban 2500 4WD
  • 1995 GMC Suburban 2500 4WD
  • 1996 GMC Suburban 2500 4WD
  • 1997 GMC Suburban 2500 4WD
  • 1998 GMC Suburban 2500 4WD
  • 1992 GMC Yukon 4WD
  • 1993 GMC Yukon 4WD
  • 1994 GMC Yukon 4WD
  • 1995 GMC Yukon 4WD
  • 1996 GMC Yukon 4WD
  • 1997 GMC Yukon 4WD
  • 1998 GMC Yukon 4WD
Perm Lok
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