4x4 Posi-Lok

4x4 Posi-Lok

  • $165.00


Bulletproof your front axle engagement system with these genuine 4x4 Posi-Lok kits.  These replace the problematic thermal linear actuators on your front differential and provide a positive cable-driven system that can't fail!  Never again worry if your 4x4 light is going to endlessly blink and never engage the axle!

After installation, you will use your floor shift or push button lever to engage the transfer case, then engage the Posi-Lok to engage the front differential.  Essentially, bypassing the factory electronic engagement actuator in favor of a mechanical unit so you know 4wd is engaged on demand.

There are 2 styles available for the 88+ GMT400 trucks so be sure to select your axle type before adding to your cart.

*May ship from manufacturer with 2 day lead time from the date your order is placed. As always, feel free to inquire before ordering if you have a time crunch.


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