Posi Traction [Limited Slip]

Posi Traction [Limited Slip]

When it comes to deciding which differential to use, Transtar carries many limited slip and locking differentials to choose from. Our knowledgable sales staff is here to help you choose the design that will best serve your customer's needs.

Posi Track Units [Differential Cases]

  • Posi
  • Non-posi

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Chrysler GM Ford  

GM 8.6" 10 BOLT 30 SPLINE HP LIMITED SLIP DIFFERENTIAL

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Transtar Part #: 742G715F

Years: 
1999-2008

Applications:
Silverado, Sierra 1500, & Full Size SUV’s 

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GM 8.5" 10 BOLT 28 SPLINE HP LIMITED SLIP DIFFERENTIAL

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Transtar Part #: 742G715D 

Years: 
1972-1987

Applications:
GM 1/2 Ton, Suburban, Blazer, and Jimmy

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GM 8.6" 10 BOLT 30 SPLINE HP LIMITED SLIP DIFFERENTIAL

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Transtar Part #: 742G715E

Years: 
1988-1999

Applications:
Silverado, Sierra 1500, & Full Size SUV’s

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GM 7.5" 10 BOLT 28 SPLINE HP LIMITED SLIP DIFFERENTIAL

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Transtar Part #: 741A715C

Years: 
1988-2003

Applications:
S-series Truck and SUV’s

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GM 8.875" 12 BOLT 28 SPLINE HP LIMITED SLIP DIFFERENTIAL

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Transtar Part #: 742J715

Years: 
1964-1982

Applications:
GM 10/20/30 series Truck, Suburban, Blazer and Jimmy

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FAQ
  • By putting the transmission in neutral and jacking both tires up, turn just one tire. If the other tire spins in the opposite direction you have an open differential, and if it spins the same direction you have a posi or a locker.

  • Posi is when both wheels are always spinning at the same time. Limited slip is when the tires have one wheel spinning faster than the other for better turning, but if it detects one wheel spinning much faster than the other it makes them both lock up and spin.