Our HD Front Axle Housing w/ Ring & Pinion & ARB Locker provides an ARB air locker, a choice of pre-installed ring & pinion gears, and TeraFlex HD Ball Joints. Transfer some of your existing components to make a complete axle assembly.

TeraFlex HD Front Axle Housings are perfect for replacing bent, broken, or damaged axles in JL and JK Wrangler/Unlimited and JT Gladiator vehicles including Rubicon models. Can also be used as a direct bolt-on upgrade for Jeep owners looking to beef up the stock axle’s weak areas.
Our Bare HD Front Axle Housings feature a heavy-duty housing with axle tubes, front inner axle shafts (JL and JT), bracketry, and forged inner knuckles as well as pre-installed inner axle seals and upper control arm bushings.
Stepping up to our HD Front Axle Housing w/ Ring & Pinion & ARB Locker provides an ARB air locker, a choice of pre-installed ring & pinion gears, front inner axle shafts (JL and JT), and TeraFlex HD Ball Joints. Transfer your existing outer components (stub shafts, unit bearings, knuckle assembly, brakes, sensors) to make a complete axle assembly! Compatible with Dana 30 AdvanTEK (M186) internal components.

JL Wrangler/Unlimited:
• Lift Height: 0–5”
• WMS-WMS: 66.5”
• Axle Tube: 3.25” x 0.5”
• Locker: 27-Spline
• Axle Shafts: 27-Spline
• Wheel Bolt Pattern: 5x5”
• Gear Ratio: 4.56
• Eliminates center axle disconnect
• Compatible with Dana 30 AdvanTEK (M186) internal components
• CALL CUSTOMER SERVICE FOR OPTIONS
Tera30 HD Front Axle:
• 3.25” O.D. x 0.5” wall extreme duty axle tube increases torsional strength to resist bending (JL)
• Asymmetric housing design for extra-long tube side strength
• Pre-installed inner axle seals
• HD forged inner knuckles w/ greater upper and lower section strength
• Ductile cast iron housing w/ increased rib gussets
• HD ductile iron differential cover w/ increased cover mounting area
• Smooth radius bottom design to glide over rocks and obstacles
• Integrated lower control arm skid plates
• High-flow oil passages and bottom oil drain hole for simple fluid changes
• UV protected triple-stage powder coat for corrosion resistance
• 1/4”-thick CNC laser cut axle brackets for extreme strength
• Integrated factory location upper control arm mount
• Pre-installed upper control arm bushings
• Proper pinion angle and raised track bar bracket for lifted applications
• Pre-drilled holes on spring perches for bump stop extension bolts
• Retains all factory ESP, ABS, and speedometer sensor capability
• 100% engineered, designed, and built in the USA w/ new components
• 1-Year/Unlimited Mileage Warranty

Vehicle(s):
• JL Wrangler (2-door)
• JL Wrangler Unlimited (4-door)
Specs:
• Lift Height: 0–5”
• WMS-WMS: 66.5”
• Axle Tube: 3.25” x 0.5”
• Locker and Axle Shafts: 27-Spline
• Wheel Bolt Pattern: 5x5”
• Gear Ratio: 4.56
• Axle Tube: 3.25” O.D. x 0.5” wall
• CALL CUSTOMER SERVICE FOR OPTIONS

6 Hours install time

• Does NOT work w/ Front Axle Disconnect.
• Factory Front Inner Right Axle Shaft – does NOT work w/ Tera30 HD Front Axle Housing.
• Tera30 HD Front Inner Right Axle Shaft will work w/ factory Dana 30 AdvanTEK (M186) Front Axle.
Requirements & Recommendations:
• CALL CUSTOMER SERVICE FOR OPTIONS
• Long Control Arm & Bracket Kit – 8-Arm (Alpine IR: JL2: # 1310512 or JL4: # 1310510) (Alpine: JL2: # 1316012 or JL4: # 1316010)
• Short Control Arm Kit – 8-Arm (Alpine IR: # 1416510 or Alpine: # 1416610)
• Sport Frame Bracket Kit – Front Control Arm (# 1938125)
• Sport Control Arm Kit – Front Lower (# 1253000)
• HD Forged Adjustable Track Bar (Front: # 1753420 and/or Rear: # 1754420)
• HD Forged Drag Link Kit & HD Chromoly Tie Rod Kit (# 1863900)
• HD Forged Drag Link Kit (# 1863920)
• HD Chromoly Tie Rod Kit (# 1863910)
• Delta Brake System – 5x5” (Front & Rear: # 4403450 or Front: # 4403451)