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Dura Grip Locker


The Yukon Dura Grip is a four spring, clutch driven limited slip with roots going back to the factory dura grip positractionunits found in 1960 through the 1970s GM muscle cars. Dura Grips are available for General Motors, Ford, Chrysler/Dodge and Nissan. This is a high quality rebuild-able reliable Positraction. These units feature Raybestos composite clutches for longer life, while still providing strong lock-up ability for improved traction.

The Dura Grip internal gears are manufactured using forged 4320 steel for improved performance. The Dura Grip positractions are supplied from the factory with 400lbs of preload. They are adjustable for customizing with 200lb or 800lb springs for less or more aggressive performance. Dura Grips are completely rebuild-able, and assembled in the USA.

 

Aggressive yet smooth traction gives you the confidence and traction you need. You will get long life and improved traction with this heavy duty Yukon Dura Grip Positraction. The Dura Grip limited slip is a torque biasing positraction that means it will transfer some of the torque from the low traction side to the high traction side improving traction. You will need one small bottle of friction modifier to be added to the differential fluid you select. Warrantied for 12 months 12,000 miles from date of purchase material. Select your rear end application form the list below and give your Proven Fored sales technican a call 800-444-0755 he can help ensure you get the correct positraction the first time.

When installing your new Dura Grip Locker its a great time to replace all your bearings, gaskets and seal, ask your ProvenForce.com sales representative he is an expert and will suggest only the parts you will need, saving you money, 800-444-0755.

Part Number Application Your Cost
Chrysler    
PFYDGC9.25-31-1 Chrysler 9.25 Inch rear $456.96
Dana    
PFYDGD44-3-30-1 Dana 44, 30 spline, 3.73 & down $456.96
PFYDGD44-4-30-1 Dana 44, 30 spline, 3.92 & up $456.96
PFYDGD50-30-1 Dana 50 $406.75
Ford    
PFYDGF10.25-35-1 Ford 10.25 Inch & 10.5 Inch $639.85
PFYDGF8.8-28-1 Ford 8.8 Inch with 28 spline axles $477.36
PFYDGF8.8-31-1 Ford 8.8 Inch with 31 spline axles $467.16
PFYDGF8-28-AG Ford 8 Inch with 28 spline axles. Aggressive Design $555.98
PFYDGF8-28-SM Ford 8 Inch with 28 spline axles. Street Design $555.98
PFYDGF8-31-SM Ford 8 Inch with 31 spline axles. Street Design $479.25
PFYDGF8-31-AG Ford 8 Inch with 31 spline axles. Aggressive Design $479.25
PFYDGF9.75-34-1 Ford 9.75 Inch with 34 spline axles $530.75
PFYDGF9-28-SM Ford 9 Inch with 28 spline axles, Street Design $479.25
PFYDGF9-28-AG Ford 9 Inch with 28 spline axles. Aggressive Design $479.25
PFYDGF9-31-AG Ford 9 Inch with 31 spline axles Aggressive Design $479.25
PFYDGF9-31-SM Ford 9 Inch with 31 spline axles Street Design $479.25
General Motors    
PFYDGGMVET-3-17-1 GM '63-'79 CI Corvette with 17 spline axles, 2.73-3.90 ratios. $518.16
PFYDGGM12P-3-30-1 GM 12 bolt car with 30 spline axles, 3.08 to 3.90 ratio $456.96
PFYDGGM12P-4-30-1 GM 12 bolt car with 30 spline axles, 4.10 & up $467.11
PFYDGGM12P-3-33-1 GM 12 bolt car with 33 spline axles, 3.08 to 3.90 ratio $496.69
PFYP PGM12P-3-418 GM 12P with 33 spline axles $359.68
PFYP PGM12P-3-814 GM 12P with 33 spline axles $359.68
PFYP PGM12P-3-818 GM 12P with 33 spline axles $359.68
PFYDGGM7.5-3-26-SM GM 7.5 Inch & 7.625 Inch with 26 spline axles, 3.23 & up $467.16
PFYDGGM7.5-3-28-SM GM 7.625 Inch with 28 spline axles, 3.23 & up $467.16
PFYDGGM8.2BOP-3-28-1 GM 8.2 Inch Buicks, Olds & Pontiac with 28 spline axles. $528.36
PFYDGGM8.2-3-28-1 GM 8.2 Inch with 28 spline axles, 3.08 and up. $477.36
PFYDGGM8.5-3-30-1 GM 8.5 Inch & 8.6 Inch with 30 spline axles $462.06
PFYDGGM8.5-3-28-1 GM 8.5 Inch with 28 spline axles $462.06
PFYDGGM9.5-33-1 GM 9.5 Inch with 33 spline axles GM $569.16
PFYDGGM14T-3-30-1 GM 10.5 Inch 14 bolt truck, 4.10 & down $569.16
PFYDGGM11.5-30-1 GM & Chrysler 11.5 Inch, 30 spline $813.90
Nissan    
PFYDGNTITAN-32-1 Nissan Titan'04 & up rear posi $640.75