DoctorDiff Drivetrain

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Axle package shown with Green Bearing installed
Axle Pkg Stock Length Mopar 5X4 1/2" Bolt Pattern (pair)
$298.00
8 3/4" w/30 spline carrier

30 or 35 spline, 5 X 4 1/2" bolt pattern axle package for 8 3/4" or Dana 60 with lug studs and Green sealed wheel bearings INSTALLED.

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8 3/4" Cone Sure-Grip Shim Pack
$25.00
These shims are used to restore lash between the side gear teeth and spider gear teeth during a Borg Warner cone Sure-Grip rebuild.
In stock
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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.
In stock
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Axle Pkg '55-'64 Chevy Passenger Car (17 spline)
$295.00
New, high-strength, 17 spline axles fit 1955-1964 Chevy passenger cars with 8.4" third-member ONLY
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AMC 1 Piece Passenger Car Axle Pkg (pair)
$298.00

Eliminate your troublesome stock 2-piece axles with DoctorDiff ONE-PIECE, CUT-TO-FIT 29 spline axle shafts.  Shafts are back oxide plated for corrosion resistance.

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Differential Carrier Bearing Puller
$198.00

Professional tool removes ALL popular carrier bearings quickly and easily with no damage to the bearing.

In stock
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Mopar 8 3/4" Ring Gear Bolts
Ring Gear Bolts

Choose ring gear bolts for Mopar 8 3/4" or Dana 60

In stock
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Dana 60, Mopar 9 1/4", and Mopar 8 3/4" Pinion Nut w/ Washer
Pinion Nut & Washer
$3.50

Choose pinion nut and washer for Dana 60, Mopar 9 1/4", or Mopar 8 3/4" pinions.

In stock
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Shock plates for classic mopars
Shock Plates (pair)
$150.00

New, super duty Mopar shock plates fit any '64-'76 A-Body, '62-72 B-Body, '64-'72 C-Body and '70-'74 E-Body equipped with standard 3" axle tubes.  Will not fit 7.25" rearends.

Out-of-stock
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