Front & Rear Adjustable Caster Bushings for Porsche 996/997/986/987/981/991 – Solid Aluminum

Adjustable Caster Bushing Kit for Porsche 996/997/986/987/981/991
Upgrade your Porsche’s suspension precision with our Adjustable Caster Bushing Kit. Engineered for 996, 997, 986, 987, 981, and 991 models, these solid aluminum eccentric bushings allow you to fine-tune caster settings that the factory left non-adjustable. Whether you’ve installed GT3 control arms, eccentric monoballs, or simply want to optimize handling, this kit delivers enhanced adjustability, improved geometry, and lasting durability.

Key Features

Precision Caster Tuning
Caster plays a critical role in steering feel, straight-line stability, and cornering performance. Our Caster Adjusters let you dial in the exact caster setting your Porsche needs—something factory rubber bushings simply cannot offer. Use it to correct unintended caster changes caused by extended lower control arms or to fine-tune understeer out of your chassis.

Dual Eccentric Adjustment Points
Featuring two eccentric mounting points, this kit provides up to 25mm of additional adjustment range. Choose the inner bore for minor caster corrections or the outer bore for extreme adjustments. This flexibility ensures compatibility with a wide range of suspension setups, from mildly modified to track-focused builds.

Reduce Rear Weight Bias
In the rear suspension, aggressive camber settings can pull the wheels forward, increasing rear weight bias and negatively affecting balance. Our Caster Adjuster allows you to compensate—or even over-compensate—reducing rear overhang and achieving a more neutral weight distribution than stock.

Solid Aluminum Construction for Precise Alignment
Factory rubber bushings compress under load, causing alignment to shift and reducing predictability. Our solid aluminum design eliminates compression, ensuring your alignment settings remain precise lap after lap. The result is sharper turn-in, consistent geometry, and a more connected driving experience.

Built to Last
Machined from high-grade billet aluminum, these bushings are built to withstand the rigors of performance driving while resisting corrosion and wear. The functional design integrates seamlessly with factory-type lower control arms (wishbones), including both stock arms and GT3 arms.

Applications

• Front & Rear: Porsche 996, 997, 986, 987, 981

• Front Only: Porsche 991

Why Choose Our Caster Adjuster Kit?

• Corrects caster changes from extended arms / monoballs

• Reduces understeer for better cornering balance

• Improves rear weight distribution

• Eliminates alignment wander caused by rubber bushing deflection

• Solid aluminum construction for durability and precision

• Easy installation using factory mounting points

Fitment Notes

• Compatible with factory lower control arms (wishbones), including stock and GT3 arms

• Professional installation and alignment recommended

Upgrade your Porsche’s suspension with the precision and adjustability it deserves. Order your Adjustable Caster Bushing Kit today and experience the difference in handling, stability, and control.