5209 Lower Boxed, 5/8in. Extended, 77-96 GM B-Body

Looking to give your Caprice or Impala a little extra edge? QA1's Boxed Trailing Arms (Lower Control Arms) are just what you need. These trailing arms keep eliminate the flex and bind from stamped steel trailing arms while adding some serious performance improvements to your ride.

BUILT TO LAST

Our trailing arms are made from larger rectangular tubing, giving them the strength to handle whatever you throw at them. Plus, they come with fully capped radius ends, keeping dirt and debris out so you can keep cruising without worries. The black powder coat finish not only adds durability but also gives that clean, factory appearance that every car enthusiast loves.

IMPROVED PERFORMANCE 

Whether you're hitting the strip, cruising the streets, or carving corners, these trailing arms are designed to reduce suspension deflection. That means you’ll get a sharper, more responsive ride with less wheel hop. Plus, with reinforced sway bar mounting holes, you can easily keep your factory-style sway bar in place, making these arms stronger than those old stamped steel ones that tend to flex.

A QUIET, COMFORTABLE RIDE

We know that you want performance without sacrificing comfort. That’s why our boxed control arms come assembled with greaseable polyurethane bushings. These bushings are designed to reduce noise and vibration, giving you a smooth, quiet ride every time you hit the road.

PROUDLY MADE IN THE USA

QA1 Trailing Arms are proudly built in Lakeville, MN.

FEATURES & BENEFITS 

• Strength: Larger rectangular tubing for added strength and durability.
• Protected Design: Fully capped radius ends keep out dirt and debris.
• Factory Finish: Black powder coat provides a durable finish
• Enhanced Handling: Reduced suspension deflection for sharper, more responsive driving.
• Sway Bar Ready: Reinforced sway bar mounting holes for easy factory sway bar installation.
• Smooth Ride: Greaseable polyurethane bushings reduce noise and vibration.
• Made in the USA: High-quality materials and craftsmanship you can trust.

FITMENT NOTES 

Sold as a pair 

Extended length by 5/8" over stock to correct wheelbase