Get ready for the track with this four (4) arm set of adjustable upper links for the Audi C8 platform. This kit has four arms so you can change camber and caster ±1.5° on both sides. xAxis seales flex joints replace the compliant inner bushings with a free pivoting, minimum compliance, joint. You will fee the difference in handling.

Forged 6061-T6 Aluminum contruction for maximized strength at a minimum weight
OE style, maintenance free, booted ball joints
Large 18mm threaded adjuster links
Replacement pinch bolts included
xAxis sealed flex joints replacing overly compliant OE inner bushings with a free pivoting, minimum compliance, joint

Don't need the added benefits of our performance arms? Use SPC arms with OE type bushings - part #81393 for two sets of arms to correct both sides of the vehicle, #81391 for the left side, or part #81392 for the right.

Need to replace the ball joint boots on these arms? We have replacement kits available! Part No. 81354.

Warning: You will also hear the difference, the OE bushings are designed to absorb and negate noise, vibration, and harshness (NVH). This set of arms will transmit road noise into the cabin.

California Residents WARNING

Adjust pinion angle on the drive axle of your Peterbilt Low Air Leaf with 'Z-Springs' using this 1.0° shim. The OE shim is aluminum and does not last under load; the SPC Zinc shim is built to last.

California Residents WARNING

Adjust pinion angle on the drive axle of your Peterbilt Low Air Leaf with 'Z-Springs' using this 1.5° shim. The OE shim is aluminum and does not last under load; the SPC Zinc shim is built to last.

California Residents WARNING

Adjust pinion angle on the drive axle of your Peterbilt Low Air Leaf with 'Z-Springs' using this 2.0° shim. The OE shim is aluminum and does not last under load; the SPC Zinc shim is built to last.

California Residents WARNING

Adjust front camber and caster ±1.5° on the Audi C8 platform with these forged aluminum adjustable control arms from SPC. OE style booted ball joints and bonded rubber bushings maintain factory ride, handling and noise, vibration, & harshness (NVH) parameters. Audi's unique multi-link suspension creates a 'Virtual' SAI. The factory does not publish specifications for caster, but SPC recommends 5° to 6° of caster as a preferred angle for tracking and return to center on these cars. This kit includes two arms to replace the two front upper arms on the left hand (LH) side. For the right hand (RH) side, use part number #81392. Want to be able to adjust both sides? Use part number #81393.

SPC arms feature:
Forged 6061-T6 Aluminum contruction for maximized strength at a minimum weight
OE style, maintenance free, booted ball joints
Large 18mm threaded adjuster links
Replacement pinch bolts included

Need to replace the ball joint boots on tehse arms? We have replacement kits available! Part No. 81354.

California Residents WARNING

Adjust front camber and caster ±1.5° on the Audi C8 platform with these forged aluminum adjustable control arms from SPC. OE style booted ball joints adn bonded rubber bushings maintain factory ride, handling and noise, vibration, & harshness (NVH) parameters. Audi's unique multi-link suspension creates a 'Virtual' SAI. The factory does not publish a specification for caster, but SPC recommends 5° to 6° of caster as a preferred angle for tracking and return to center on these cars. This kit includes four arms to replace both upper links on both sides of the vehicle. For the left hand (LH) side, use #81391. For the right hand (RH) side, use part number #81392.

SPC Arms Feature:
Forged 6061-T6 Aluminum contruction for maximized strength at a minimum weight
OE style, maintenance free, booted ball joints
Large 18mm threaded adjuster links
Replacement pinch bolts included

Need to replace the ball joint boots on these arms? We have replacement kits available! Part No. 81354.

California Residents WARNING

Adjust front camber and caster ±1.5° on the Audi C8 platform with these forged aluminum adjustable control arms from SPC. OE style booted ball joints and bonded rubber bushings maintain factory ride, handling and noise, vibration, & harshness (NVH) parameters. Audi's unique multi-link suspension creates a 'Virtual' SAI. The factory does not publish a specification for caster, but SPC recommends 5° to 6° of caster as a preferred angle for tracking and return to center on these cars. The kit includes two arms to replace the two front upper arms on the right hand (RH) side. For the left hand (LH) side, use part number #81391. Want to be able to adjust both sides? Use part number #81393.

SPC Arms Feature:
Forged 6061-T6 Aluminum contruction for maximized strength at a minimum weight
OE style, maintenance free, booted ball joints
Large 18mm threaded adjuster links
Replacement pinch bolts included

Need to replace the ball joint boots on these arms? We have replacement kits available! Part No. 81354.

California Residents WARNING

These shims adjust thrust angle & toe by placing it between the spring hanger and the spring on the Freightliner FAS I Air Ride Suspension. Six shims per box.

California Residents WARNING

These shims adjust thrust angle & toe by placing it between the spring hanger and the spring on the Freightliner FAS I Air Ride Suspension. Six shims per box.

California Residents WARNING

These shims adjust thrust angle & toe by placing it between the spring hanger and the spring on the Freightliner FAS I Air Ride Suspension. Six shims per box.

California Residents WARNING

These shims adjust thrust angle & toe by placing it between the spring hanger and the spring on Volvo/White 4-Spring Suspension. Six shims per box.

California Residents WARNING

These shims adjust thrust angle & toe by placing it between the spring hanger and the spring on Volvo/White 4-Spring Suspension. Six shims per box.

California Residents WARNING