SuperPro SPF4087K Steering Rack Mount Bushing Kit for 1998-2005 Lexus GS300/GS40

Vehicle Fitment

• 1998-2005 Lexus GS300 (2JZ-GE I6), GS400 (1UZ-FE V8 1998-2000), GS430 (3UZ-FE V8 2001-2005), SC430 (3UZ-FE V8 2002-2010); RWD

Features

• 3x SuperPro polyurethane rack bushings (donut + clamshell halves)
• OEM-style precision molding - exact steering rack fit
• Polyurethane material resists heat, oil, water, coolant
• Improves steering feel, reduces slop and wandering
• Enhances road holding and tire wear consistency
• Quiet NVH design - no harsh ride impact
• Backed by lifetime warranty
• Australian-engineered and tested under extreme conditions

Specifications

• Part number: SPF4087K
• Location: Front steering rack mount, driver and passenger side
• Material: Engineering-grade polyurethane
• Includes 3 bushings (donut + 2 halves)
• Drivetrain: Rear-wheel drive only
• Rack diameter compatibility: Toyota OEM rack from 47-? mm (per model fitment)
• Torque: Use OE rack mount torque per service manual; alignment recommended

Included Components

• 3x Polyurethane bushings (1 donut, 2 clamshell halves)
• 1x Grease packet
• 1x Installation instruction sheet

Product Description

The SuperPro SPF4087K Steering Rack Mount Bushing Kit replaces the factory rubber bushes with high-performance polyurethane for a firmer, more consistent steering feel in Lexus GS and SC models. Designed specifically for GS300, GS400, GS430, and SC430 vehicles from 1998 to 2005 (SC430 extends to 2010), this kit reduces steering rack movement and wandering, delivering precise and responsive handling with minimal NVH impact.

Compatible with rear-wheel drive chassis utilizing the Toyota OEM steering rack, the SPF4087K includes both donut-style and clamshell bushings. These are machined with exact factory tolerances to provide a snug fit, resist deflection under load, and eliminate steering looseness. The polyurethane formulation is reliable in extreme temperatures and chemical exposure, suitable for spirited driving, daily commute, or performance upgrades.

Installation follows OEM procedures: remove rack mount bolts, apply provided grease to the bushing halves, press into place, and torque to the vehicle manufacturer's specifications. A full alignment is recommended after installation to ensure optimal steering geometry. Backed by SuperPro's lifetime warranty and validated by Toyota engineering and aftermarket testing, this kit is a durable, performance-oriented upgrade.