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Dana 60 Helical Type Sure-Grip ("Sure-Trac")

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DoctorDiff Sure-Trac is a fully machined, forged steel Dana 60 posi which operates similar to an Eaton True-Trac. It features 6 helical gears and upgraded 35 spline side gears.

Fits all 3.23-4.30 street gears, EXCEPT Richmond.

Use conventional 85 W 140, GL-5 grade gear lube. Friction modifier is not necessary.

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