Upper Adjustable, 05-10 MUSTANG (PART #QA1-5253)

When it comes to fine-tuning your 2005-2010 Mustang, QA1's Adjustable Upper Trailing Arm (rear control arm) is a game-changer. These control arms are built to improve your car's performance and durability with ease.

PINION ANGLE ADJUSTMENT FOR LOWERED VEHICLES

If you've lowered your car, adjusting the pinion angle is a must to keep everything running smoothly. Our Rear Upper Trailing Arms make this adjustment simple, thanks to an aluminum hex design that lets you adjust things right on the car. Getting the pinion angle right not only prevents unnecessary wear and tear on your drivetrain but also helps avoid issues like wheel hop. With everything properly aligned, your car will ride better and perform at its best.

REDUCE REAR SUSPENSION BIND

Our trailing arms are designed to cut down on suspension bind, which means your car's rear suspension will move more freely. The result? A smoother ride and better traction, giving you more consistent performance every time you hit the road.

THOUGHTFUL DESIGN

Experience the benefits of thoughtful design with this easy bolt-in upgrade.

EASY BOLT-IN INSTALLATION

The bolt-in installation makes this upgrade hassle-free, allowing you to quickly and easily improve your vehicle's suspension without extensive modifications.

MADE IN THE USA

QA1 suspension is proudly made in Lakeville, Minnesota.

FEATURES & BENEFITS

High-strength, low-bind construction for reliable performance.

Aluminum hex design allows for easy on-the-car pinion angle adjustments.

Reduces friction for smoother suspension travel.

Easy bolt-in installation without complicated modifications needed.

Proudly made in the USA for top-notch quality you can count on.

FITMENT NOTES

Designed to work with factory rear end housings

SPECIFICATIONS

Position - Upper or Lower Upper
Adjustable or Fixed Length Adjustable
Construction Tubular

More From This Category

QA1 3/5 Lowering Kit, 15-20 F150 4WD, W/Spindles, Double Adjustable

QA1 3/5 Lowering Kit, 15-20 F150 4WD, W/Spindles, Double Adjustable

$6,017.06

QA1 4/6 Lowering Kit w/o Spindles, 2007-2018 Silverado 1500/Sierra 1500, 4WD, Single Adjustable

QA1 4/6 Lowering Kit w/o Spindles, 2007-2018 Silverado 1500/Sierra 1500, 4WD, Single Adjustable

$3,974.01

QA1 Shock Mount, T-Bar Conversion, Proma Star/GMP/Gen-F, 3.5in. T-bar, Kit

QA1 Shock Mount, T-Bar Conversion, Proma Star/GMP/Gen-F, 3.5in. T-bar, Kit

$42.75

QA1 2/3 Lowering Kit, 2007-2018 Silverado 1500/Sierra 1500, 2WD, Single Adjustable

QA1 2/3 Lowering Kit, 2007-2018 Silverado 1500/Sierra 1500, 2WD, Single Adjustable

$3,175.51

QA1 Rear Drop Kit, 07-18 Silverado, 4-6in. Drop, Single Adjustable

QA1 Rear Drop Kit, 07-18 Silverado, 4-6in. Drop, Single Adjustable

$1,904.45

QA1 Rod Eye, Carbon Steel, 5/8in. Bore, Male 5/8in.-18 RH Thread, 1-Piece, Each

QA1 Rod Eye, Carbon Steel, 5/8in. Bore, Male 5/8in.-18 RH Thread, 1-Piece, Each

$11.57