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JK/JKU: Flexarm & Track Bar Guide

Category:  Product Highlights

TeraFlex

JK Wrangler | JKU Wrangler Unlimited

Sport Flexarm | Alpine Adjustable Flexarm

Alpine Adjustable Long Flexarm | HD Forged Adjustable Track Bars

      

        

Sport Flexarms – 2.5-3” Lift

       

TeraFlex fixed-length JK/JKU Sport Flexarms (2.5-3” Lift) provide maintenance-free and dependable performance on JK Wrangler and JKU Wrangler Unlimited models with 2.5-3” lifts. Can be added to any existing suspension lift.

      

INCLUDES: (2) front upper, (2) front lower, (2) rear upper, and (2) rear lower Sport Flexarms.

     

FEATURES & BENEFITS:

      

  • Durable 1-5/8” x 0.157” (42mm x 4mm) wall DOM (Drawn Over Mandrel) tube provides maximum strength

     

  • Pre-set length flexarm corrects caster & pinion angle for 2.5-3” lift kits
  • Full-range of movement will not restrict articulation or flex off-road

     

  • High-quality factory style bushings provide excellent noise, vibration, & harshness (NVH) damping & ride quality characteristics w/ zero maintenance
  • Premium black e-dipped coating provides superior durability & corrosion resistance

    

  • TeraFlex Lifetime Warranty against defects

    

SPECS:

    

LIFT HEIGHT: 2.5-3”

     

SPORT FRONT UPPER FLEXARMS

SPORT FRONT LOWER FLEXARMS

        

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

FACTORY LENGTH

18-3/4”

FACTORY LENGTH

22-5/8”

SPORT LENGTH

18-3/4”

SPORT LENGTH

22-13/16”

BOTH ENDS

7/16” (12mm) Bolt

BOTH ENDS

9/16” (14mm) Bolt

BOTH BUSHINGS

611014

BOTH BUSHINGS

611011

        

SPORT REAR UPPER FLEXARMS

SPORT REAR LOWER FLEXARMS

         

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

FACTORY LENGTH

17-7/16”

FACTORY LENGTH

19-3/4”

SPORT LENGTH

17-11/16”

SPORT LENGTH

19-15/16”

BOTH ENDS

9/16” (14mm) Bolt

BOTH ENDS

9/16” (14mm) Bolt

BOTH BUSHINGS

611012

BOTH BUSHINGS

611011

        

JK 2-DOOR & JKU 4-DOOR

SPORTFLEXARMS (2.5-3” LIFT)

Sport 8-Arm Flexarm Kit - Complete Set

   

Sport 4-Arm Flexarm Kit (Front Lower & Rear Upper)

    

Sport Front Upper Flexarm Kit - Pair

Sport Front Lower Flexarm Kit - Pair

Sport Rear Upper Flexarm Kit - Pair

Sport Rear Lower Flexarm Kit - Pair

     

Alpine Adjustable Flexarms – 2-4” Lift

      

TeraFlex JK/JKU Alpine Adjustable Flexarms (2-4” Lift) provides maximum adjustability, dependability, and performance while retaining factory control arm mounting locations on JK Wrangler and JKU Wrangler Unlimited models with 2-4” lifts. Can be added to any existing suspension lift.

    

INCLUDES: (2) front upper, (2) front lower, (2) rear upper, and (2) rear lower Alpine Flexarms.

     

FEATURES & BENEFITS:

     

  • Durable 1-5/8” x 0.157” (42mm x 4mm) wall DOM (Drawn Over Mandrel) tube provides maximum strength

    

  • Fully adjustable flexarms optimize pinion & caster angles, & tune anti-squat geometry for proper suspension alignment 
  • Re-centers axles in the wheel well for proper suspension movement or can be used to increase wheelbase
  • Full-range of movement will not restrict articulation or flex off-road

     

  • High-quality factory style bushings provide excellent noise, vibration, & harshness (NVH) damping & ride quality characteristics w/ zero maintenance
  • Zero maintenance forged threaded joints for smooth quiet flex 
  • Premium black e-dipped coating provides superior durability & corrosion resistance on tube & forged rod end housing
  • Anodized 6061-T6 aluminum clamp collar to secure rod end after length adjustment

     

  • TeraFlex Lifetime Warranty against defects

    

SPECS: 

    

LIFT HEIGHT: 2-4”

     

ALPINE FRONT UPPER ADJUSTABLE FLEXARMS

ALPINE FRONT LOWER ADJUSTABLE FLEXARMS

          

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

FACTORY LENGTH

18-3/4”

FACTORY LENGTH

22-5/8”

MIN. LENGTH

18-1/2”

MIN. LENGTH

22-3/4”

MAX. LENGTH

19-3/4”

MAX. LENGTH

24”

BOTH ENDS

7/16” (12mm) Bolt

BOTH ENDS

9/16” (14mm) Bolt

THREAD

1-1/4”-12 UNF 

THREAD

1-1/4”-12     UNF 

BOTH BUSHINGS

611014

BOTH BUSHINGS

611011

       

ALPINE REAR UPPER ADJUSTABLE FLEXARMS

ALPINE REAR LOWER ADJUSTABLE FLEXARMS

        

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

FACTORY LENGTH

17-7/16”

FACTORY LENGTH

19-3/4”

MIN. LENGTH

17-5/8”

MIN. LENGTH

19-13/16”

MAX. LENGTH

18-7/8”

MAX. LENGTH

21-1/16”

BOTH ENDS

9/16” (14mm) Bolt

BOTH ENDS

9/16” (14mm) Bolt

THREAD

1-1/4”-12     UNF 

THREAD

1-1/4”-12 UNF 

BOTH BUSHINGS

611012

BOTH BUSHINGS

611011

          

JK 2-DOOR & JKU 4-DOOR

ALPINE ADJUSTABLE FLEXARMS (2-4” LIFT)

Alpine 8-Arm Adjustable Flexarm Kit - Complete Set

    

Alpine Front Upper Adjustable Flexarm Kit - Pair      

Alpine Front Upper Adjustable Flexarm - Driver

Alpine Front Upper Adjustable Flexarm - Passenger

     

Alpine Front Lower Adjustable Flexarm Kit - Pair

Alpine Front Lower Adjustable Flexarm - Driver

Alpine Front Lower Adjustable Flexarm - Passenger    

    

Alpine Rear Upper Adjustable Flexarm Kit - Pair

Alpine Rear Upper Adjustable Flexarm - Driver

Alpine Rear Upper Adjustable Flexarm - Passenger

    

Alpine Rear Lower Adjustable Flexarm Kit - Pair    

Alpine Rear Upper Adjustable Flexarm - Driver

Alpine Rear Upper Adjustable Flexarm - Passenger

     

       

Alpine Adjustable Long Flexarms – 3-6” Lift

     

TeraFlex JK/JKU Alpine Adjustable Long Flexarms & Long Flexarm Brackets (3-6” Lift) provide maintenance-free performance with complete alignment adjustability for JK Wrangler and JKU Wrangler Unlimited models with 3-6” lifts. 

     

Fully adjustable Alpine Long Flexarms(3-6” Lift) optimize correct caster and pinion angles for a proper alignment as well as re-center the axles in the wheel well to maintain the factory wheelbase for proper suspension movement. Can be added to an existing suspension lift.

     

These CAD-designed Long Flexarm Brackets (3-6” Lifthave been engineered for maximum strength. By streamlining the mounting points, we were able to incorporate both upper and lower mounts in each bracket thus simplifying installation while maintaining a factory appearance. 

                    

INCLUDES: (2) front upper, (2) front lower, (2) rear upper, and (2) rear lower Alpine Long Flexarms, (2) front and (2) rear long flexarm brackets, (2) rear gussets, and all necessary hardware.

     

FEATURES & BENEFITS:

     

  • Durable 1-5/8” x 0.157” (42mm x 4mm) wall DOM (Drawn Over Mandrel) tube provides maximum strength (upper) 
  • Durable 2” x 0.197” (50mm x 5mm) wall DOM tube provides maximum strength (lower) 

     

  • Fully adjustable long flexarms optimize pinion & caster angles, & tune anti-squat geometry for proper suspension alignment 
  • Re-centers axles in the wheel well for proper suspension movement or can be used to increase wheelbase
  • Full-range of movement will not restrict articulation or flex off-road

      

  • High-quality factory style bushings provide excellent noise, vibration, & harshness (NVH) damping & ride quality characteristics w/ zero maintenance
  • Zero maintenance forged threaded joints for smooth quiet flex 
  • Premium black e-dipped coating provides superior durability & corrosion resistance on tube & forged rod end housing
  • Anodized 6061-T6 aluminum clamp collar to secure rod end after length adjustment

        

  • TeraFlex Lifetime Warranty against defects

     

SPECS:   

      

LIFT HEIGHT: 3-6”

     

ALPINE FRONT UPPER ADJUSTABLE LONG FLEXARMS

ALPINE FRONT LOWER ADJUSTABLE LONG FLEXARMS

         

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

TUBE DIAMETER & WALL

2” x 0.197” (50mm x 5mm)

FACTORY LENGTH

18-3/4”

FACTORY LENGTH

22-5/8”

MIN. LENGTH

27-3/8”

MIN. LENGTH

33-3/4”

MAX. LENGTH

28-7/8”

MAX. LENGTH

35-1/4”

AXLE END

7/16” (12mm)   Bolt 

BOTH ENDS

9/16” (14mm) Bolt

FRAME END

9/16” (14mm)   Bolt 

THREAD

1-1/4”-12 UNF 

THREAD

1-1/4”-12 UNF 

BOTH BUSHINGS

# 611011

AXLE BUSHING

611014



FRAME BUSHING

611013



         

ALPINE REAR UPPER ADJUSTABLE LONG FLEXARMS

ALPINE REAR LOWER ADJUSTABLE LONG FLEXARMS

        

TUBE DIAMETER & WALL

1-5/8” x 0.157” (42mm x 4mm) 

TUBE DIAMETER & WALL

2” x 0.197” (50mm x 5mm)

FACTORY LENGTH

17-7/16”

FACTORY LENGTH

19-3/4”

MIN. LENGTH

20”

MIN. LENGTH

35-3/4”

MAX. LENGTH

21-1/2”

MAX. LENGTH

37-1/4”

BOTH ENDS

9/16” (14mm) Bolt

BOTH ENDS

9/16” (14mm) Bolt

THREAD

1-1/4”-12 UNF 

THREAD

1-1/4”-12 UNF 

BOTH BUSHINGS

611012

BOTH BUSHINGS

611011

               

JK 2-DOOR & JKU 4-DOOR

ALPINE ADJUSTABLE LONG FLEXARMS (3-6” LIFT)

Alpine 8-Arm Adjustable Long Flexarm & Long Flexarm Bracket Kit

Alpine 8-Arm Long Flexarm Kit - Arms Only

Long Flexarm Bracket Kit - Brackets Only 

           

Alpine Front Upper Adjustable Long Flexarm Kit - Pair 

Alpine Front Upper Adjustable Long Flexarm - Driver   

Alpine Front Upper Adjustable Long Flexarm - Passenger

     

Alpine Front Lower Adjustable Long Flexarm Kit - Pair

Alpine Front Lower Adjustable Long Flexarm - Driver

Alpine Front Lower Adjustable Long Flexarm - Passenger

      

Alpine Rear Upper Adjustable Long Flexarm Kit - Pair

Alpine Rear Upper Adjustable Long Flexarm - Driver

Alpine Rear Upper Adjustable Long Flexarm - Passenger

      

Alpine Rear Lower Adjustable Long Flexarm Kit - Pair

Alpine Rear Upper Adjustable Long Flexarm - Driver

Alpine Rear Upper Adjustable Long Flexarm - Passenger    

      

      

      

      

       

Lower Flexarm Skid Plate Kits

        

Weld-on TeraFlex JK/JKU JK Lower Flexarm Skid Plate Kits strengthen the lower control arm assembly against bending while protecting the arms from damage. The CNC cut brackets are constructed from 1/4” thick steel.

       

JK 2-DOOR & JKU 4-DOOR

LOWER FLEXARM SKID PLATE KIT

Front Lower Flexarm Skid Plate Kit

Rear Lower Flexarm Skid Plate Kit

    

    

      

Flexarm Cam Bolt Washer Kit

     

Are you tired of your control arms always coming out of adjustment? Stop the constant axle misalignment with TeraFlex JK/JKU Flexarm Cam Bolt Washer Kit.

     

These Flexarm Cam Bolt Washers lock the cam bolt into position to eliminate potential movement, which causes axle misalignment. Fits into the factory locations of the front lower and rear upper cam bolt adjusters.

     

JK 2-DOOR & JKU 4-DOOR

FLEXARM CAM BOLT WASHERS 

Flexarm Cam Bolt Washer Kit

     

HD Forged Adjustable Track Bars – 0-6” Lift

      

Our Heavy-Duty Forged Adjustable Front and Rear Track Bars are 230% stronger than the stock piece making them the strongest track bars on the market!

      

FEATURES & BENEFITS:

      

  • HD Forged Track Bar is 230% stronger than factory track bar 
  • Bolts onto factory track bar brackets & can be used w/ or w/out a Track Bar Relocation Bracket – no cutting or welding required 
  • High-quality, maintenance-free factory-style bushings w/ an additional rate plate for superior handling & responsive control

       

Adjustable Front Track Bar

       

The front axle experiences tremendous amounts of lateral force while turning and those effects increase exponentially during off-road driving. The TeraFlex JK/JKU Heavy-Duty Forged Adjustable Front Track Bar is engineered to withstand these abusive side loads and eliminates any front-end shimmy or handling issues. It also allows lateral adjustment of the axle for proper axle alignment as well as cycling through full suspension travel without interfering with other components.

             

Adjustable Rear Track Bar

      

The TeraFlex JK/JKU Heavy-Duty Forged Adjustable Rear Track Bar is engineered to keep the rear axle correctly centered under the vehicle as the suspension cycles through its full range of movement. It also maximizes rear passenger spring clearance without interfering with other components.

      

JK 2-DOOR & JKU 4-DOOR

HD FORGED ADJUSTABLE TRACK BARS (0-6” LIFT)

Adjustable Front Track Bar

Adjustable Rear Track Bar

Replacement Track Bar Bushing (Front or Rear)

                  

Front Track Bar Bracket Gusset

      

The TeraFlex JK/JKU Front Track Bar Bracket Gusset beefs up the Front Track Bar Axle Bracket to prevent ‘egging out’ of the track bar hole, which can quickly loosen causing critical suspension points to bend during high-speed driving.

    

JK 2-DOOR & JKU 4-DOOR

FRONT TRACK BAR BRACKET GUSSET

Front Track Bar Bracket Gusset - Single

              

2.5” Performance Spacer Lift Rear Track Bar Frame Bracket Kit

     

The TeraFlex JK/JKU 2.5” Performance Spacer Lift Rear Track Bar Frame Bracket Kit restores the track bar to its natural position without binding or interference with other components on JK Wrangler and JKU Wrangler Unlimited models with a 2.5” Performance Spacer Lift Kit. Bolts to upper track bar frame mounting points – no welding required. 

      

JK 2-DOOR & JKU 4-DOOR

REAR TRACK BAR FRAME BRACKET KIT 

2.5” Performance Spacer Lift Rear Track Bar Frame Bracket Kit

          

      

     

       

Rear Track Bar Axle Bracket Kits

    

These TeraFlex JK/JKU Rear Track Bar Axle Bracket Kits correct vehicle roll center, restore factory handling, and reduce body roll in lifted JK Wrangler and JKU Wrangler Unlimited models.

    

Two lift height ranges are available. Multiple mounting locations allows neutral lateral alignment of the rear axle on JK/JKU models with 2.5” lifts or 3-6” lifts. Bolt-on bracket mounts to the rear axle. Welding is recommended but not required.

     

JK 2-DOOR & JKU 4-DOOR

REAR TRACK BAR AXLE BRACKET KITS 

2.5” Lift Rear Track Bar Axle Bracket Kit

3-6” Lift Rear Track Bar Axle Bracket Kit

            

Check out all of our TeraFlex Suspensions Lifts, Off-Road Performance Parts, and Jeep Accessories HERE!

   

- Jason Udy 

       

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