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Sharpen Rear-End Response On Your Tesla With A Spherical Upgrade
The factory rubber bushing at the upper front inner mount of the rear control arm on the Tesla Model 3 and Model Y compresses under hard cornering and regenerative braking loads, letting the arm shift out of alignment. The Whiteline W63630 replaces that factory bushing with a low-compliance spherical bushing that locates the rear control arm's upper front inner mounting point precisely, delivering sharper, more predictable rear-end response.
Key Features
- Low-compliance spherical bushing design eliminates the deflection built into the factory rubber bushing
- Precisely locates the rear control arm's upper front inner mounting point
- Improves rear-end response under cornering and heavy regenerative braking
- W63630 is a direct bolt-in replacement using factory mounting hardware
- Backed by Whiteline's lifetime warranty against manufacturing defects
Fitment Table
| Year Range | Make | Model |
|---|---|---|
| 2017-2026 | Tesla | Model 3 |
| 2021-2026 | Tesla | Model Y |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | W63630 |
| Brand | Whiteline |
| Position | Rear Control Arm, Upper Front Inner Bushing |
| Bushing Type | Low-Compliance Spherical Bearing |
| UPC | Not published by manufacturer |
| Warranty | Whiteline Lifetime Limited Warranty |
What's Included
- Rear upper control arm inner forward spherical bushing set
- Installation hardware where applicable
- Whiteline installation instructions
About Whiteline
Whiteline is an Australian-engineered suspension brand that designs performance bushings, sway bars, and control arms to correct factory suspension geometry and reduce unwanted flex. The W63630 uses a sealed spherical bearing to eliminate the compliance built into Tesla's factory rubber bushing while remaining durable for daily street driving.
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FAQ
What is the W63630?The W63630 is a Whiteline low-compliance spherical bushing kit that replaces the upper front inner bushing on the rear control arm of Tesla Model 3 and Model Y vehicles. It eliminates the deflection built into the factory rubber bushing for sharper rear-end response.
Does this fit both RWD and AWD Model 3 and Model Y?Yes, this kit fits both rear-wheel-drive and all-wheel-drive versions of the Model 3 and Model Y listed in the fitment table above.
Does installing this bushing require an alignment afterward?Yes, a rear wheel alignment is recommended after installation since the new bushing changes the compliance characteristics of the control arm mount.
Is this a direct bolt-in replacement?Yes, it uses the factory mounting points and hardware, so no cutting, drilling, or fabrication is required.
What is a spherical bushing and how is it different from rubber?A spherical bushing uses a sealed bearing instead of rubber, which removes the flex that lets the control arm shift position under load.
Will this bushing make my ride harsher?Spherical bushings are firmer than the factory rubber bushing, so drivers may notice slightly more road feel in exchange for sharper handling precision.
Does this kit come with a warranty?Yes, it is covered by Whiteline's lifetime limited warranty against manufacturing defects.
Can this bushing kit be installed at home?Yes, it can be installed with common hand tools, though a shop press may be needed to remove the old bushing from the control arm.
Install Instructions
- Raise and support the rear of the vehicle safely, then remove the rear wheel.
- Support the rear control arm and remove the bolt securing its upper front inner mount.
- Press the factory bushing out of the control arm mount.
- Press the new spherical bushing into the control arm mount.
- Reinstall the control arm and torque the mounting bolt to factory specification.
- Reinstall the wheel and lower the vehicle.
- Have a rear wheel alignment performed before extended driving.
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