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

CUSCO 20mm Rear Sway Bar

For 1983–1987 Toyota Corolla Levin / Sprinter Trueno AE86 & 1985–1987 Toyota Corolla Sport SR5 / GT-S AE86

Overview

The CUSCO 20mm Rear Sway Bar is a fixed-rate suspension upgrade designed to increase rear roll stiffness on Toyota AE86 applications. Its solid 20 mm construction helps reduce body roll and provides a more controlled chassis response during cornering and rapid direction changes.

CUSCO rates the bar at approximately 195% of the standard rear sway bar rate when compared with the 14 mm factory GT / GT Apex bar. The vehicle-specific design uses the factory-style mounting arrangement and includes replacement bushings for the rear housing-side mounting points.

Key Features

• 20 mm solid rear sway bar
• Fixed-rate, non-adjustable design
• CUSCO-rated at approximately 195% of the standard 14 mm rear sway bar rate
• Increases rear roll stiffness for improved chassis control
• Helps reduce body roll during cornering
• Vehicle-specific design for Toyota AE86 applications
• Uses factory-style mounting locations
• Includes replacement rear housing-side bushings
• Straightforward alternative to an adjustable rear sway bar

Suspension Performance

Increasing rear sway bar stiffness reduces the amount of independent rear suspension movement during cornering, helping keep the chassis flatter and making transitions feel more immediate.

The CUSCO bar uses a fixed 20 mm rate, making it well suited to drivers who want a substantial rear sway bar upgrade without adjustment positions or additional suspension tuning variables.

Vehicle Fitment

Toyota Corolla Levin

• 1983–1987 Toyota Corolla Levin – AE86

Toyota Sprinter Trueno

• 1983–1987 Toyota Sprinter Trueno – AE86

Toyota Corolla Sport

• 1985–1987 Toyota Corolla Sport SR5 – AE86 – 4A-C
• 1985–1987 Toyota Corolla Sport GT-S – AE86 – 4A-GE

Fitment Notes

• Rear suspension application only
• AE86 chassis
• Fixed-rate sway bar; not externally adjustable
• Uses the factory-style rear sway bar mounting arrangement
• Includes bushings for the rear housing-side mounting points
• CUSCO's published 195% stiffness figure is based on the 14 mm factory GT / GT Apex rear bar
• Factory rear sway bar diameter can vary by market and trim, so the 195% comparison should not be interpreted as the increase over every North American AE86 factory configuration
• CUSCO lists approximately 1.0 hour as the reference installation time

Product Specifications

Brand: CUSCO
Product Type: Rear Sway Bar / Anti-Roll Bar
Position: Rear
Diameter: 20 mm
Construction: Solid
Design: Fixed Rate / Non-Adjustable
Rate vs. Standard: Approximately 195% vs. 14 mm GT / GT Apex factory bar
Vehicle Chassis: AE86
Fit Type: Vehicle Specific
Bushings: Rear housing-side bushings included
Reference 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 Toyota AE86 applications, but the primary difference is adjustability.

The Whiteline 20mm Rear Sway Bar uses a 3-point adjustable design, allowing the driver to change effective rear roll stiffness to suit different handling preferences and suspension setups. Whiteline lists approximately 19 mm, 20 mm, and 21 mm effective settings from soft to hard.

The CUSCO 20mm Rear Sway Bar uses a fixed-rate design. It is better suited to owners who want a straightforward rear sway bar upgrade with a consistent setting and no adjustment required.

• Whiteline 20mm Adjustable: Best for drivers who want suspension tuning flexibility
• CUSCO 20mm Fixed: Best for simplicity and a consistent fixed-rate setup

If you prefer an adjustable rear sway bar, see the Whiteline 20mm 3-point adjustable rear sway bar listing on Preserve Rad.

What's Included

• (1) CUSCO 20 mm rear sway bar
• Rear housing-side mounting bushings