AE86 CUSCO 20mm Rear Sway Bar (1983-87 Corolla)

CUSCO 20mm Rear Sway Bar

For 1983–1987 Toyota Corolla AE86 Trueno & Levin SR5, GTS and All JDM Trims

Overview

The CUSCO 20mm Rear Sway Bar is a vehicle-specific rear suspension upgrade for the Toyota Corolla Levin and Sprinter Trueno AE86. Its solid 20mm construction increases rear roll stiffness over the factory sway bar, helping reduce body roll and improve chassis control through corners and during rapid direction changes.

Designed around the AE86's factory mounting locations, the bar provides a straightforward installation without changing the factory-style mounting arrangement. CUSCO also includes the rear housing-side mounting bushings required for installation.

With approximately 195% of the factory bar's stiffness, this is a substantial handling upgrade for AE86 owners seeking a firmer, more responsive rear suspension without an adjustable sway bar setup.

Key Features

• 20mm solid rear sway bar for increased rear roll stiffness
• Approximately 195% of factory stiffness
• Vehicle-specific design for the AE86 chassis
• Helps reduce body roll during cornering
• Improves chassis control during quick direction changes
• Provides a more responsive and predictable handling balance
• Uses factory mounting locations
• Includes rear housing-side mounting bushings
• Fixed-rate design requires no adjustment or tuning
• Designed for 4A-GE 1.6L front-engine, rear-wheel-drive applications

Suspension Performance

The larger 20mm solid bar increases the AE86's resistance to rear suspension roll compared with the factory bar. This helps control body movement during cornering and can provide a more immediate, controlled response when transitioning from one direction to another.

The fixed-rate design makes the CUSCO a straightforward choice for drivers who want a substantial rear sway bar upgrade without adjustable settings or additional tuning variables.

Vehicle Fitment

Toyota Corolla Levin

• 1983–1987 Toyota Corolla Levin – AE86 – 4A-GE 1.6L

Toyota Sprinter Trueno

• 1983–1987 Toyota Sprinter Trueno – AE86 – 4A-GE 1.6L

Fitment Notes

• Rear application only
• AE86 chassis
• 4A-GE 1.6L
• Uses factory mounting locations
• Includes bushings for the rear housing-side mounting points
• Factory rear sway bar specification is 14mm or 16mm; the CUSCO upgrade is 20mm
• Approximately 195% of factory sway bar stiffness

Product Specifications

Brand: CUSCO
Product Type: Rear Sway Bar / Anti-Roll Bar
Position: Rear
Chassis: Toyota AE86
Diameter: 20mm
Construction: Solid
Stiffness vs. Standard: Approximately 195%
Engine Application: 4A-GE 1.6L
Bushings: Rear housing-side bushings included
Mounting: Factory mounting locations
Installation Time: Approximately 1 hour

Whiteline vs. CUSCO 20mm Rear Sway Bar

Both the Whiteline 20mm Rear Sway Bar and CUSCO 20mm Rear Sway Bar increase rear roll stiffness on the AE86, but they are intended for slightly different approaches to suspension tuning.

Choose Whiteline if you want adjustability and the ability to fine-tune handling balance. Its adjustable design allows the driver to change the bar's response for different driving conditions, making it a strong choice for street cars that see autocross or track use. The kit also includes the associated links and mounting hardware.

Choose CUSCO if you want a simple, fixed-rate 20mm upgrade with a traditional Japanese performance focus. Its fixed design provides a substantial increase in rear roll stiffness without requiring the owner to experiment with different adjustment positions.

In short: choose Whiteline for adjustability and suspension tuning; choose CUSCO for a straightforward fixed-rate 20mm upgrade.

If you prefer the adjustable Whiteline 20mm rear sway bar, see this listing instead.

What's Included

• (1) CUSCO 20mm Rear Sway Bar
• Rear housing-side mounting bushings