TeraFlex 4181538 TeraCRD60 HD Rear Axle Assembly Semi-Float 5.38 R&P ARB Locker 70 Inch 0-6 Inch Lift

The TeraFlex TeraCRD60 HD Rear Axle Assembly (MPN: 4181538) is a complete, ready-to-install semi-float rear axle built specifically for the 2020-and-up Jeep Gladiator JT. This assembly comes loaded with a pre-installed 5.38 ratio Spicer Super 60 ring & pinion and an ARB Air Locker, making it a fully configured, heavy-duty drivetrain upgrade right out of the box.

The assembly includes Spicer Super 60 bearings, semi-float rear axle shafts, and sensors—providing everything needed for a direct bolt-on installation. The heavy-duty axle housing features smooth-profile surfaces, heavy-duty axle tubes with reinforced bearing caps, high-flow oil passages, all necessary mount brackets, pre-installed seals, upper control arm bushings, and increased differential cover mounting area.

TeraFlex's exclusive Constant Radius Design (CRD) sets this axle apart from conventional Dana 60-style housings by delivering maximum ground clearance regardless of pinion angle adjustments—a critical advantage when running a suspension lift. The Super 60 ring & pinion architecture is compatible across all available Super 60 gear ratios, making this housing an ideal long-term platform for extreme-duty off-road builds.

Key Features:

• Complete semi-float rear axle assembly with pre-installed 5.38 R&P and ARB Air Locker
• Spicer Super 60 bearings and 40-spline semi-float rear axle shafts
• Exclusive Constant Radius Design (CRD) for consistent ground clearance independent of pinion angle
• 3.25 inch O.D. x 0.375 inch wall heavy-duty axle tubes
• 70 inch wheel mounting surface to wheel mounting surface (WMS-WMS)
• Compatible with 0–6 inch suspension lift heights
• All necessary mount brackets, control arm bushings, and sensors included
• Direct bolt-on replacement or upgrade for JT Gladiator including Rubicon models
• Adjustable control arms required for proper caster angle correction

Specifications:

• Lift Height Compatibility: 0–6 inches
• WMS-WMS Width: 70 inches
• Axle Tube: 3.25 inch O.D. x 0.375 inch wall
• Axle Splines: 40
• Ring & Pinion Ratio: 5.38
• Locker: ARB Air Locker
• Float Type: Semi-Float

Whether replacing a bent, broken, or worn-out factory axle or upgrading a stock Gladiator drivetrain for more demanding terrain, the TeraCRD60 HD delivers the strength, durability, and performance that serious off-road builds demand. Note: Adjustable control arms are required for caster angle correction when installed.