TeraFlex 4006488 Tera CRD60 HD Full-Float Rear Axle Assembly 4.88 R&P ARB Locker 70 Inch WMS Jeep Gladiator JT

The TeraFlex Tera CRD60 HD Rear Axle Assembly (Part #4006488) is a complete, bolt-on rear axle solution engineered specifically for the 2020-and-newer Jeep Gladiator JT, including Rubicon models. Built around the legendary Dana 60 platform with TeraFlex's exclusive Constant Radius Design (CRD), this axle delivers serious heavy-duty performance for off-road enthusiasts who demand more than stock hardware can provide.

The CRD housing geometry maintains high ground clearance regardless of pinion angle adjustments — a critical advantage when running lift kits up to 6 inches. The assembly arrives fully configured with a 4.88 gear ratio Spicer Super 60 ring and pinion, an ARB Air Locker, and a complete full-float outer axle setup, making it a direct drop-in upgrade or a reliable replacement for bent, broken, or worn factory axles.

Key Features:

• Constant Radius Design (CRD) — maximizes ground clearance independent of pinion angle
• Full-float axle design — transfers vehicle weight to the housing, not the axle shafts, for superior durability
• ARB Air Locker — on-demand differential locking for extreme traction on any terrain
• 4.88 Spicer Super 60 ring and pinion — compatible with all Super 60 gear ratios for extreme-duty applications
• 35-spline inner and outer axle shafts — dramatically increased torque capacity over OEM
• 1350 series pinion yoke — handles high-horsepower and high-torque drivetrain loads
• Smooth-profile axle housing with pre-installed mount brackets, axle tubes, and control arm bushings
• Direct bolt-on fitment for stock and lifted JT Gladiator applications (0–6 inch lift)

What's Included:

• ARB Air Locker
• Spicer Super 60 Ring & Pinion (4.88 ratio)
• Spicer bearings and install kits
• Full-float outer axles
• 35-spline inner axle shafts
• 35-spline outer stub shafts
• 1350 series pinion yoke
• Delta Brake Kit — Rear
• Dana 60 / Tera CRD60 Differential Cover Kit (#3990660)

Specifications:

• Width (WMS to WMS): 70 inches
• Axle Tube: 3.25 inch diameter × 0.375 inch wall thickness
• Wheel Bolt Pattern: 8 × 6.5 inch
• Gear Ratio: 4.88
• Lift Compatibility: 0–6 inch lift

Whether you're replacing damaged factory axles or proactively upgrading weak OEM components before your next trail run, the TeraFlex Tera CRD60 HD Rear Axle Assembly is the definitive heavy-duty rear axle solution for the Jeep Gladiator JT platform.