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Drivetrain› Differentials and Rear-End Components

Mopar

Rear Axle Differential

$1,300.00 $852.50 Save $447.50

SKU: 68378938AB

In Stock
In Stock
Ships by Aug 7
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Mopar 68378938AB is a factory-original rear axle differential assembly, built to restore drivetrain integrity and performance. This differential is a direct replacement part designed for compatibility with 2014-2023 Dodge Durango and 2014-2021 Jeep Grand Cherokee models. Note that application is specific to 4x2 configurations; it is not compatible with all drivetrain setups. Some configurations featuring the 5.7L V8 HEMI engine may be referenced in technical documentation for this part. Professional installation is recommended for this component to ensure correct pinion alignment and sealing. This part may be cross-referenced or superseded by part number 68378938AD. All genuine Mopar parts are backed by the manufacturer's factory warranty.

MIA's Description

The Mopar 68378938AB is a genuine OEM rear axle differential designed to meet strict factory standards for reliability and performance. This new replacement part is manufactured using high-tech production processes to ensure consistent quality and a precise fit for specific vehicle applications.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandMopar
Part Number68378938AB
CategoryDrivetrain

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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