PowerTrax (LK109031): GRIP LOK Traction System for Ford 9″ 31 Spline

Representing the latest in traction-adding differential technology, the GRIP LOK combines the fully automatic locking action of PowerTrax’s traditional locker with the strength of a fully machined case. This is PowerTrax’s strongest locking differential, offering the ultimate in competition and off-road utility by way of its mechanically actuated traction capabilities.

The PowerTrax GRIP LOK comes fully assembled.


  • For Ford 9″, 31 spline (up to 550 hp)
  • Ultimate in competition for street, strip, and off-road
  • Comes fully assembled
  • Automatic, mechanically actuated traction differential technology
  • Fully machined, forged-steel case
  • Warranty: 2 years/100,000 miles

PowerTrax GRIP LOK Automatic Locking Differential

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Though this is not a paid review, this content has been produced by The AAM Group™ in support of manufacturers with whom it has a business relationship.

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