Dana 44 300M locking hub gear upgrade on a white background
Fitment table for Warn Premium hub 30 spline gear replacement on a white background.
Dana 44 300M locking hub gear upgrade on a white background
Fitment table for Warn Premium hub 30 spline gear replacement on a white background.

RCV 30-Spline Dana 44 300M Locking Hub Gear Upgrade

D4342

$99.95
/
Shipping calculated at checkout.

The RCV 30 Spline Dana 44 300M Locking Hub Gear Upgrade delivers the best of both worlds—the convenience of lockouts with the strength of a slug. Designed as the premium upgrade for Warn Premium Locking Hub Kits, this gear replaces the OEM Dana 44 hub gear with a fully machined 300M alloy steel unit for unmatched torsional strength and durability.

Perfect for high-horsepower setups, large tires, and aggressive trail or competition use. Installation is simple and the upgrade is fully compatible with RCV outer axles.

Includes:

  • (1) 300M Dana 44 Hub Gear (sold individually)
Specifications
  • Material: 300M high-strength alloy steel
  • Spline Count: 30 spline
  • Direct replacement for OEM Dana 44 hub gear
  • Fits with Warn Premium Locking Hub Kits
  • Strength comparable to running drive slugs
Fitment

Compatible with:

  • Dana 44 axles using 30 spline locking hubs
  • Warn Premium Locking Hub Kits (recommended pairing)

Ideal for:

  • RCV Dana 44 outer axle setups
  • High load / high torque applications
  • Larger-than-stock tire setups
Tech Insight

The factory Dana 44 hub gear is a known weak point when subjected to modern off-road power levels, oversized tires, and aggressive terrain. By swapping to a 300M hub gear, torsional capacity increases dramatically—bringing your locking hub strength closer to that of a full-time slug while keeping the drivability and flexibility of a lockout. This is a highly recommended upgrade when running RCV Dana 44 outers to prevent hub-related failures on the trail.

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