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Dana 60 Clutch Type Sure-Grip ("Powr-lok")

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DoctorDiff Dana 60 heavy duty 4-pinion clutch sure-grip ("Powr-Lok") posi includes upgraded 1 piece 35 spline side gears.  Unit is built with OEM Spicer clutch pack.

Fits all 3.54-4.30 street gears, EXCEPT Richmond.

Use conventional 85 W 140, GL-5 grade gear lube, plus 1 bottle Ford friction modifier additive

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