Drivetrain› Differentials and Rear-End Components

Dana

KIT-BEARING & SEAL

$845.69

SKU: D00O 390KS103-X

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Dana 390KS103-X is a differential component or kit for differential systems. Dana is a leading manufacturer of drivetrain and axle systems, offering technologies like Spicer® Trac-Lok™, Spicer® Powr-Lok™, Spicer® PerformaTraK™, and Electronic Limited Slip Differentials. These systems are designed for enhanced power density, performance, durability, and traction in light vehicles, passenger cars, trucks, SUVs, and crossovers. Dana components are manufactured to strict quality standards for longevity and reliability.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandDana
Part NumberD00O 390KS103-X

Videos

Dana 44 Pinion and Carrier Installation (True Spirit #18)

Dana 44 Pinion and Carrier Installation (True Spirit #18)
Dana 44 Rebuild: Pinion Depth, Backlash and Shim Setup

Dana 44 Rebuild: Pinion Depth, Backlash and Shim Setup
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d60 pinion setup
Opening Dana 44 axle cover after 45 years! #automobile #ford #mechanic #rebuild #country #1979

Opening Dana 44 axle cover after 45 years! #automobile #ford #mechanic #rebuild #country #1979
Tech Tip! Setting Dana 60 Backlash #mechanic #shorts #ringandpinnion #dana60

Tech Tip! Setting Dana 60 Backlash #mechanic #shorts #ringandpinnion #dana60
Dana 60 Gear And Locker Install

Dana 60 Gear And Locker Install
Yukon Gear Heavy Duty Diff Cover - Jeep Dana 44 Install

Yukon Gear Heavy Duty Diff Cover - Jeep Dana 44 Install
Yukon Unboxing - Hardcore Dana 44 Cover

Yukon Unboxing - Hardcore Dana 44 Cover
How To Build The Ultimate Dana 44 Axle From The Junkyard!! Including Ring & Pinion Plus Locker

How To Build The Ultimate Dana 44 Axle From The Junkyard!! Including Ring & Pinion Plus Locker
How to Re-gear a Dana 30

How to Re-gear a Dana 30

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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