Yukon Gear & Axle ZGK012 Complete Gear & Install Kit Package 4.56 Ratio Non-Rubicon Jeep JK

The Yukon Gear & Axle ZGK012 is a complete re-gear package that combines front and rear ring and pinion gear sets with comprehensive master overhaul kits in one convenient part number. Specifically designed for 2007-2016 Jeep Wrangler JK Non-Rubicon models with Dana 30 front and Dana 44 rear differentials, this kit provides everything needed for a professional differential gear ratio change to 4.56:1.

Complete Package Includes:

• Front ring and pinion gear set (Dana 30)
• Rear ring and pinion gear set (Dana 44)
• Two complete master overhaul kits (front and rear)

Master Overhaul Kit Components:

• Premium Timken bearings and races for superior quality and durability
• Carrier bearings and pinion bearings with races
• Pinion seal, crush sleeve or preload shims, and pinion depth shims
• Ring gear bolts, pinion nut, and carrier shims
• Gear marking compound with brush for proper setup
• Gasket and/or silicone, plus 20-page instruction manual

Key Features:

• High-performance ring and pinion gear sets manufactured to meet or exceed OEM specifications using state-of-the-art design and advanced heat-treating techniques
• Engineered to run cooler and quieter than stock gears while adding power and performance
• Crafted from premium grade triple alloy steel for consistent performance and long-lasting durability with increased crawl ratio
• Undergoes rigorous in-house quality testing including dimensional, material, and fitment inspections
• Complete package provides everything needed for proper installation

Installation Notes:

• Professional installation recommended for proper gear setup and break-in
• Additional gear oil required (not included)
• If upgrading from factory 3.21 gears, a new front carrier may be required
• Does not include axle shaft bearings and seals at the wheels

The 4.56 gear ratio is ideal for correcting speedometer error after installing larger tires, improving low-end torque for off-road performance, or enhancing towing capability. Whether you're increasing tire size, looking for more towing power, or enhancing off-road prowess, this convenient combo kit has everything your vehicle needs.

Warranty: 1 year warranty against manufacturer defects. Optional Yukon Extended Warranty Plan available for lifetime coverage.