SKU: 34817575294

RockNut 21-Up Bronco Billet Aluminum Johnny Joint Rear Control Arm Set Double Adjustable RockJock 4X4

Sale price$640.35 Regular price$711.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 12 - Sep 17

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Description

RockNut 21-Up Bronco Billet Aluminum Johnny Joint Rear Control Arm Set Double Adjustable RockJock 4X4RockJock's RockNut Billet Aluminum Johnny Joint Control Arm Set for the 2021 up Bronco provides you with extremely heavy duty upper and lower, adjustable length control arms to replace your factory control arms. Adjustable control arms are a must for aligning lifted vehicles to get your pinion angle specs. in check and double adjustable arms make this job that much easier because neither end of the arm has to be removed from the vehicle for

RockJock's RockNut Billet Aluminum Johnny Joint Control Arm Set for the 2021-up Bronco provides you with extremely heavy duty upper and lower, adjustable length control arms to replace your factory control arms.

Adjustable control arms are a must for aligning lifted vehicles to get your pinion angle specs. in check - and double adjustable arms make this job that much easier because neither end of the arm has to be removed from the vehicle for adjustment!

These arms are CNC machined from 7075-T6 aluminum, feature our patent pending RockNut locking nut technology and our 2 1/2 inch Johnny Joints with massive 1 1/4 inch RH and LH threads!

Arms are fully greasable, fully adjustable and feature machined-in wrench flats. Finished in clear anodize on the arms and gold zinc plating on the Johnny Joint ends.

Kit Fits:

  • 2021-up Bronco - All Models

Kit Includes:

  • Johnny Joint Billet Aluminum Rear Upper Control Arms (Pair)
  • Johnny Joint Billet Aluminum Rear Lower Control Arms (Pair)

Adjustment Range:

  • Upper Arms Closed - 13.900 in.
  • Upper Arms Extended - 16.000 in.
  • Lower Arms Closed - 25.100 in.
  • Lower Arms Extended - 27.000 in.

Notes:

  • Factory hardware is retained to attach arms to the axle and the chassis.
  • Upper arms are fabricated from 1 5/8 in. solid 7075-T6 aluminum bar.
  • Upper Arm RockNuts require a 1 3/4 in. wrench
  • Upper Arm wrench flats require a 1 1/2 in. wrench.
  • Lower arms are fabricated from 2 in. solid 7075-T6 aluminum bar.
  • Lower Arm RockNuts require a 1 7/8 in. wrench
  • Lower Arm wrench flats require a 1 3/4 in. wrench.
  • Adjusters feature 1 1/4 in.-12 RH and LH threads.
  • Johnny Joint ends are fully rebuildable - should the need arise.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34817575294

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Stacey O.
Lake Worth, US
★★★★★ 5
Fits Honda clarity
Easy and correct fit for Honda clarity
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
J
Verified Purchase
John Ball
Waukegan, US
★★★★★ 5
Works Great
I bought this filter for a friend that smokes in the car. Helps reduce the smell a lot. Just make sure it is installed in the right direction.
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Reviewed in the United States on September 20, 2025
L
Verified Purchase
Levi
Lake Worth, US
★★★★★ 3
Not EXACT fit 2020 Honda Civic
Got this to replace cabin air filter on 2020 Honda Civic Sport, as it said it was a direct fit… It does fit but not perfectly! Holding it next to the filter you can see the size difference, with the original being slightly longer. I noticed a whistling sound from the AC at full blast right after install. I believe this noise is caused by the small gap left in the retainer box with the slightly smaller filter. Luckily it is not incredibly loud, but it’s still there. The quality of filtration seems to be much better than stock filter, but the fitment not exact for vehicles mentioned above.
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Reviewed in the United States on May 17, 2026
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Verified Purchase
Bon43
Lowell, US
★★★★★ 5
Awesome
Easy to install. Fit appropriately. Value for the money for sure.
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Reviewed in the United States on September 26, 2025
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Verified Purchase
tprizzle
Whiting, US
★★★★★ 5
Will continue to repurchase
I have purchased this product multiple times for my Honda CRV. Works great and is actually pretty easy to install. I will definitely repurchase once the time comes to replace again. Great value for the price compared to at the dealership
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Reviewed in the United States on June 1, 2025

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