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Eaton

Eaton K-D30-JK Front Master Install Kit for 2007-2018 Jeep Wrangler JK Dana 30

Regular price
$191.95
Regular price
$205.98
Sale price
$191.95
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In Stock: 6

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Product Specification:

SKU:EATK-D30-JK

MPN: K-D30-JK

Weight: 6.0 lb

Inventory: 6

Type: Differential Install Kits



Vehicle Fitment

  • 2007-2018 Jeep Wrangler JK (Front, Dana 30 JK, 4WD)

Fitment Notes

  • Fits only **front Dana 30 JK** axle housings used in 2007-2018 JK Wrangler. :
  • Ring & pinion must be the JK front R&P with 24-pinion spline count.
  • Axle spline count: 27 spline outer shafts. 
  • Ring gear rotation: reverse rotation version. 
  • Fitment confirmed through 2018. 2019-2025 JK front Dana 30 applications unverified.

Features

  • Includes premium Eaton / Timken grade bearings (carrier side, inner & outer pinion) for reliable service. 
  • 10 ring gear bolts + 10 cover bolts included for full hardware replacement. 
  • Carrier shims included for correct preload and backlash setup. 
  • Shim kit & gear marking compound included for accurate installation. 
  • Reverse-rotation ring gear required in JK front axles - this kit matches that spec. 
  • Pinion spline count: 24 spline; axle (outer) spline count: 27.
  • Complete master install kit - all bearings, bolts, seals necessary included. 
  • Designed for 4WD front axle load and terrain use typical of JK Wrangler duties. 

Specifications

  • Product Type: Master Install Kit - front differential overhaul. 
  • Axle Model: Dana 30 JK, front. 
  • Axle Spline Count (outer shafts): 27 spline. 
  • Pinion Spline Count: 24 spline. 
  • Ring Gear Rotation: Reverse rotation. 
  • Ring Gear Bolts: 10. 
  • Cover Bolts: 10. 
  • Carrier Shims Included: Yes.

Included Components

  • 1x Carrier side bearing set (left & right)
  • 1x Inner pinion bearing (head)
  • 1x Outer pinion bearing (tail)
  • 10x Ring gear bolts
  • 10x Cover bolts
  • 1x Thread locking compound
  • 1x Gear marking compound
  • Shim pack (carrier & pinion)

Product Description

The Eaton K-D30-JK Front Master Install Kit is a complete overhaul kit tailored for the front Dana 30 JK axle found in 2007-2018 Jeep Wrangler JK models (4WD). It supplies all components you need for a ring & pinion replacement or full front differential rebuild: premium bearings, correct reverse-rotation ring & pinion hardware, seals, and all necessary bolts. Built to OEM / Eaton-level quality, this kit ensures optimal preload, backlash, and quiet durable performance in harsh off-road or daily use.

Before ordering, verify that your front axle is a JK-Dana 30, with 27-spline axle shafts, 24-spline pinion, and reverse rotation. This kit is *not* compatible with standard Dana 30s of earlier Jeep models (YJ, TJ, XJ) or front Dana 44 / rear axles, which have different specs. Fitment confirmed through 2018. For 2019+ or other vehicles, confirm spec match before purchase.

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