DoctorDiff Drivetrain Components

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8 3/4" Ring and Pinion

$195.00
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All ratios are not available for all cases
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8 3/4" ring and pinion.

Available ratios depend on the case (741, 742, 489).

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8 3/4" bearing rebuild kit
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8 3/4" Clutch Type Sure-Grip ("Powr-lok")
$395.00

Reproduction 8 3/4" clutch sure-grip ("powr-lok") includes upgraded 1 piece 30 spline side gears and 4340 cr-mo spider gears

8 3/4" Helical Gear Sure-Grip ("Sure-Trac II")
$595.00
DoctorDiff Sure-Trac II is a fully machined, forged steel 8.75" differential with helical worm gears similar to an Eaton True-Trac.
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