The factory rear lower control arm brackets on a Jeep JK are practically sheet metal — bend or tear one on a hard hit and your rear geometry is done for the day. Artec's JK Rear LCA Brackets with Skids replace them with 1/4" boxed-steel brackets that wrap the axle tube for a stronger weld, and they carry your lower control arm, shock, and sway bar mounts in one integrated, skid-protected unit.
Key Features
- 2.625" mounting width fits common cartridge joints (Johnny Joint, Flex, Ballistic, etc.) as well as factory control arm bushings.
- Bracket wraps further around the axle tube than the factory piece for more weld surface area, greatly reducing the chance of the bracket ripping off.
- Made from 1/4" boxed steel plate for strength and impact resistance, with integrated skid protection.
- Shock mounts at factory height for a direct replacement — they do not limit your up-travel.
- Provides mounting locations for your lower control arms, shocks, and sway bar in one bracket.
Fitment & Compatibility
Fits the rear axle of the Jeep Wrangler JK and JKU (2007-2018). Choose the variant that matches your axle tube diameter: the Factory D44 option for the 3.15" tube of a stock Dana 44, or the Aftermarket / 1-ton Swap option for a 3.5" tube. These are weld-on brackets. Pair them with Artec JK Rear UCA Brackets to reinforce the upper mounts as well.
Specifications
| Specification | Detail |
|---|---|
| Material | 1/4" boxed steel plate |
| Joint width | 2.625" (cartridge joints and factory bushings) |
| Integrated mounts | Lower control arm, shock, sway bar |
| Shock mount height | Factory height (no loss of up-travel) |
| Axle tube options | 3.15" (factory D44) or 3.5" (aftermarket / 1-ton swap) |
| Part numbers | JK4427 / BR1137 |
What's in the Box
- Pair of JK rear LCA brackets with integrated skids and shock/sway bar mounts (weld-on)
Frequently Asked Questions
Which axle tube size do I need?
Measure your rear axle tube. A stock JK Dana 44 is 3.15"; most aftermarket and 1-ton swap axles are 3.5". Order the matching variant so the bracket wraps the tube correctly.
What joints do the brackets accept?
The 2.625" mounting width fits common cartridge joints such as Johnny Joint, Flex, and Ballistic, as well as factory rubber control arm bushings.
Will they reduce my suspension travel?
No. The shock mounts sit at factory height, so up-travel is preserved while you gain a much stronger, skid-protected bracket.
Do they need to be welded on?
Yes. They are weld-on replacements that wrap the axle tube for maximum weld area — full-penetration welds are recommended.
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