Collection: Gears
Differential gears designed to restore power, improve torque delivery, and optimize performance with larger tires. Available in multiple gear ratios with vehicle-specific fitment for off-road and heavy-duty drivetrain builds.
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Yukon Gear & Axle Gear & Install Kit Package for Dana 44 Diffs, Jeep JK Rubicon, 4.88 ratio
Regular price $767.89 USDRegular priceSale price $767.89 USD
Drivetrain Buyer Guide & Fitment Info
What drivetrain upgrades do I need?
Drivetrain upgrades improve strength, traction, and power delivery—especially when running larger tires or driving off-road. Common upgrades include differential gears, lockers, axle shafts, and supporting installation components.
Your ideal setup depends on tire size, driving style, and how much stress your vehicle sees on the trail or while towing.
Regearing & tire size considerations
Larger tires change the effective gear ratio and can reduce acceleration and drivability. Regearing helps restore power, improve throttle response, and reduce strain on the drivetrain.
Selecting the correct gear ratio depends on tire size, axle type, and intended use—daily driving, trail use, or heavy-duty applications.
Lockers: traction when it matters
Differential lockers improve traction by ensuring power is delivered to both wheels when needed. Options include automatic and selectable lockers, each offering different levels of control and on-road behavior.
Lockers are especially beneficial for technical trails, uneven terrain, and low-traction conditions.
Axle shafts & drivetrain strength
Upgraded axle shafts are designed to handle increased torque from larger tires, lower gearing, and aggressive driving. They help reduce the risk of breakage in high-stress off-road situations.
Strength upgrades are commonly paired with lockers and gear changes.
Install kits & professional setup
Gear install kits include bearings, seals, shims, and hardware required for proper differential setup. Correct installation is critical—gear setup typically requires specialized tools and professional experience.
Improper setup can lead to noise, premature wear, or drivetrain failure.
Fitment & compatibility notes
Drivetrain components are highly vehicle- and axle-specific. Always verify axle type, gear ratio compatibility, drivetrain configuration, and model year before purchasing.
If you’re unsure, upgrading drivetrain components as a matched system helps ensure reliability and performance.