SPC Performance 93-05 Lexus GS300/98-00 GS400/01-05 GS430 Front Adjustable Upper Control Arms

Shop alignment components at Black Ops Auto Works for premium camber kits, caster kits, control arms, toe links, shock mounts, camber plates, and suspension alignment parts designed to improve handling, tire wear, steering response, and suspension geometry. Whether you are dialing in a street car, correcting alignment after lowering your vehicle, or building a track-ready or off-road setup, this collection features high-quality components built for fitment, adjustability, and long-term performance. Shop Alignment Components by Category Browse alignment parts and suspension geometry upgrades across popular product categories, including: Alignment kits Camber kits Caster kits Adjustable control arms Upper control arms Rear toe links and toe arms Shock mounts and camber plates Alignment correction components Suspension geometry upgrades Vehicle-specific alignment hardware   These parts are designed to help improve wheel alignment settings, reduce uneven tire wear, increase stability,...

Control arms are the key suspension linkages that connect the wheel hub and knuckle assembly to the vehicle frame, controlling wheel travel through both compression and droop cycles. Worn OEM control arms with loose ball joints or deteriorated bushings cause vague steering, tire wear, and handling inconsistency that only go away with replacement or upgrade.Popular UpgradesTubular steel upper control arms for lifted trucks and SUVs are the most popular upgrade in the control arm category, correcting the geometry compromised by a suspension lift and restoring proper caster angle and ball joint centering. Adjustable upper control arms allow alignment angles like caster and camber to be dialed in precisely after a lift or lowering modification. Replacement lower control arms with polyurethane or solid aluminum bushings improve response and longevity compared to worn OEM rubber mounts.Why do I need new control arms after a lift kit?A suspension lift changes the angle at which the OEM upp...

SPC Performance Suspension & Alignment PartsSPC Performance has been engineering precision alignment and suspension components since 1987, trusted by professional race teams, alignment shops, and performance enthusiasts worldwide. Every SPC part is designed to restore or enhance alignment geometry — giving you better tire wear, sharper handling, and a more predictable ride whether you're building a daily driver or a dedicated track car.Why SPC Performance? Made in the USA — SPC manufactures the majority of its products domestically, ensuring tight tolerances and consistent quality. OE-Style Fitment — Direct-fit designs that install without cutting, welding, or fabrication. Adjustability Built In — Engineered adjustment ranges that go beyond factory specs for lowered and modified vehicles. Trusted by Alignment Pros — SPC is a go-to brand for professional alignment technicians and performance shops. Shop SPC Performance by Category Alignment Components — Camber kits, caster k...

Aftermarket suspension systems improve handling, ride quality, and ride height adjustment beyond what the factory suspension provides. From lowering springs and coilover kits for sport handling to lift kits and leveling kits for truck and SUV off-road capability, quality suspension components transform how a vehicle rides and handles. Popular Suspension Upgrades Popular suspension upgrades include coilover kits for adjustable ride height and damping, sport lowering springs for improved handling and reduced body roll, performance shock absorbers and strut assemblies, sway bar and end link upgrade kits, subframe brace kits, and complete suspension packages for lifted trucks and off-road SUVs. Alignment kits including camber bolts and camber arms are also frequently ordered after ride height changes. What is the difference between coilovers and lowering springs? Coilovers are complete shock and spring assemblies with adjustable ride height set by threading the spring perch on the shock...