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Tighten Up Wandering Front End Feel On Your Lexus GS
Aging front lower control arm inner bushings let the arm shift under cornering and braking loads, robbing the GS of the planted, precise front end feel it had from the factory. The Whiteline W53643 replaces the soft factory rubber with a synthetic elastomer bushing kit engineered to hold consistent alignment geometry and restore sharper steering response.
Key Features
- Synthetic elastomer construction resists oil, grease, ozone, and weathering far longer than factory rubber
- Kit includes 4 bushings and 2 tubes for a complete front lower control arm inner bushing replacement
- Internal grease reservoirs provide continual self lubrication to manage friction over time
- Protective plating and powder coating on metal components resists corrosion in harsh conditions
- Restores precise control arm location for sharper steering response and more consistent braking
- Reduces unwanted deflection under cornering and braking loads compared to worn factory rubber
- Backed by Whiteline limited lifetime warranty
Fitment
| Year Range | Make | Model |
|---|---|---|
| 1998-2005 | Lexus | GS300 |
| 1998-2000 | Lexus | GS400 |
| 2001-2005 | Lexus | GS430 |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | W53643 |
| Brand | Whiteline |
| UPC | Not published by manufacturer |
| Position | Front Lower Control Arm, Inner Bushing |
| Kit Contents | 4 Bushings, 2 Tubes |
| Material | Synthetic Elastomer |
| Warranty | Limited Lifetime |
What's Included
- 4 front lower control arm inner bushings
- 2 alignment tubes
- Installation grease
About Whiteline
Whiteline has spent decades engineering suspension bushings, sway bars, and control arms that correct factory compliance and sharpen handling without sacrificing everyday drivability. Their synthetic elastomer formulations are developed specifically to outlast rubber OE components while holding tighter alignment tolerances under load.
FAQ
What is the W53643?The W53643 is a Whiteline front lower control arm inner bushing kit made from synthetic elastomer, designed for the 1998-2005 Lexus GS300, 1998-2000 GS400, and 2001-2005 GS430 to replace worn factory rubber bushings at the front lower control arm inner mounting position.
What vehicles does this kit fit?This kit fits the second generation Lexus GS, covering the 1998-2005 GS300, the 1998-2000 GS400, and the 2001-2005 GS430.
What does this kit include?The kit includes 4 bushings and 2 tubes for a complete front lower control arm inner bushing replacement, along with installation grease.
How do I know if my control arm bushings are worn?Common symptoms include uneven or cupped tire wear, a vague or wandering steering feel, clunking noises over bumps, and inconsistent braking response caused by the control arm shifting position under load.
What material are these bushings made from?They are manufactured from Whiteline's synthetic elastomer compound, chosen for its resistance to oil, grease, ozone, and weathering compared to factory rubber.
Does this kit come with grease for installation?Yes, installation grease is included to lubricate the bushings during and after fitment.
What warranty does Whiteline offer on this kit?Whiteline backs this kit with a limited lifetime warranty against manufacturing defects.
Will installing this kit stiffen my ride noticeably?Synthetic elastomer bushings are firmer than factory rubber, which improves control arm precision, but Whiteline formulates its compounds to balance handling gains with a livable ride for daily driving.
Install Instructions
- Raise and safely support the vehicle, then remove the front wheel on the side being serviced
- Support the front lower control arm and disconnect it from its inner mounting points
- Press out the worn factory bushings from the control arm using an appropriate bushing press or tool
- Clean the bushing bores and apply the supplied grease to the new bushings and tubes
- Press the new bushings and tubes into place, ensuring proper seating and alignment
- Reconnect the control arm to its inner mounting points and torque hardware to manufacturer specification
- Reinstall the wheel and repeat on the opposite side
- Have the vehicle's alignment checked and adjusted after installation
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