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Rock Krawler RK08388K Billet Aluminum Upper A-Arms for Ford Bronco

Manufacturer

Picture for manufacturer Rock Krawler Suspension

Part Number

RK08388K
7 reviews
Sale Price

$1,345.24

Estimated ship date Thursday, November 19

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Fitment guaranteed

Fitment guaranteed

Product Details

The Rock Krawler RK08388K Billet Aluminum Upper A-Arms are a premium suspension upgrade precision-machined from solid 6061-T651 aluminum billet. Designed as a complete bolt-in replacement, these upper control arms deliver adjustable alignment geometry, completely silent operation, and long-term serviceability for serious off-road and street use alike.

At the frame side, Rock Krawler's proprietary Adventure Series Joints provide a service-free, free-rotating pivot that is both rebuildable and easily replaceable. The upright connection features the Quiet Control ball joint, engineered with adjustable preload to compensate for wear over time and designed for cost-effective rebuilding. Rock Krawler also upgrades the upright stud from the factory 12mm to a beefy 14mm for added strength and durability at the knuckle interface.

Full adjustability allows precise tuning of both caster and camber to suit your specific lift height and driving style — whether you're crawling technical trails or commuting on pavement. The billet construction ensures exceptional strength-to-weight ratio compared to stamped or tubular alternatives.

Key Features:

  • Billet machined from solid 6061-T651 aluminum for maximum strength and durability
  • Adjustable caster and camber for precise alignment tuning
  • Adventure Series Joints at frame connections — service-free, free-rotating, rebuildable
  • Quiet Control ball joint at upright connection with adjustable preload
  • Upsized 14mm upright stud (up from OEM 12mm) for enhanced strength
  • Complete bolt-in installation — no modifications required
  • Completely silent operation on-road and off-road
  • Abuse-proof lifetime warranty on all hard parts (non-wear items)
  • Does NOT fit Bronco Raptor models

Kit Includes:

  • (1) Pair of billet aluminum upper A-arms

The Rock Krawler RK08388K upper A-arms are built for enthusiasts who demand the highest level of precision engineering, serviceability, and long-term reliability from their suspension components.

This is my first order from you. So, we will see how it works out.

Ordering was easy and fast

Very simple and clear instructions.

They had exactly what I was looking for at the best price so I went ahead and made the order which I don't regret. They shipped out my order the very next day and received it in about 3 days. Can't comment on the durability yet because I still haven't installed my new Megan Racing muffler. I'll give an update. But I do recommend this site.

Great service

Fast shipping. Received order sooner than I anticipated!

simple and quick

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