BMR 6th Gen. Upper & Lower Trailing Arm Package

BMR Upper & Lower Rear Trailing Arms - TCA059R (Upper) + TCA060R (Lower)
Eliminate rear suspension flex, and put more power to the tire with BMR’s upper and lower trailing arm package.

If you’re serious about putting power down in a 6th Gen. Camaro, whether that’s LT1 N/A high revving power, or LT4 boost, you should highly consider upgrading your rear trailing arms. Why? Because the factory rear trailing arms are one of the weakest links in the entire suspension system.

The BMR Upper (TCA059R) and Lower (TCA060R) Rear Trailing Arms, sold here as a matched performance pair, replace the thin, stamped OEM arms and soft rubber bushings with rigid DOM steel construction and high-performance bushings designed to control fore/aft axle movement under load.

The result?
Less wheel hop. More consistent traction. Sharper throttle response. And a rear end that feels bolted to the chassis instead of riding on rubber bands.

Why trailing arms matter (the science + real-world effect)

Rear trailing arms primarily control longitudinal wheel movement, how much the rear wheels try to walk forward/backward under acceleration and braking.

From the factory:

• Thin stamped arms + soft rubber bushings = compliance

• Compliance allows axle wind-up

• Axle wind-up = wheel hop, traction loss, and delayed response

BMR’s solution replaces flex with structure:

• Stiffer arms reduce deflection

• Performance bushings limit unwanted movement

• Rear geometry stays consistent under load

That consistency is what translates into better launches, smoother power delivery, and improved stability—especially on higher-horsepower LT builds and cars running wider/stickier tires.

Why sell upper + lower as a pair (this matters)

Many people replace one arm and wonder why wheel hop isn’t fully gone.

Here’s the reality:

• Upper and lower trailing arms work together

• Replacing only one leaves compliance in the system

• Mixing stock + upgraded arms creates uneven load paths

By installing both TCA059R + TCA060R together, you:

• Eliminate flex in both load directions

• Keep suspension motion balanced and predictable

• Get the maximum benefit per dollar spent

This is how BMR intended these parts to work—and why Griffin Motorsports sells them as a bundle.

Engineering & construction highlights

Common features (both arms)

• Heavy-duty DOM steel tubing for maximum stiffness

• Fully TIG-welded construction for strength and durability

• High-durometer polyurethane bushings (greaseable) to control movement without harsh NVH

• Red powdercoat finish for corrosion resistance and visual pop

• Made in the USA

Upper Trailing Arms – TCA059R

• Controls upper fore/aft axle movement

• Replaces thin factory stamped arm

• Reduces axle wind-up during acceleration

• Improves rear-end response during throttle transitions

Lower Trailing Arms – TCA060R

• Handles the primary longitudinal load

• Major contributor to reducing wheel hop

• Improves straight-line stability and braking consistency

• Stronger foundation for sticky tires and higher torque output

What you’ll feel after install

• Significantly reduced wheel hop (especially with aggressive launches)

• More immediate throttle response

• Better traction consistency across varying surfaces

• Improved rear stability under braking and corner exit

• A rear end that feels controlled instead of reactive

This is one of those upgrades where customers almost always say: “I should’ve done this sooner.”

Fitment Guide

Vehicle Compatibility

• 2016–2024 Chevrolet Camaro (6th Gen)

• Coupe models

• Compatible with SS, LT1, ZL1, and 1LE trims