AE86 CUSCO Formula Link Adjustable Rear Upper Control Arms (1983–87 Corolla)

CUSCO Formula Link Adjustable Rear Upper Control Arms

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

Overview

The CUSCO Formula Link Rear Upper Control Arm Set is a performance-oriented replacement for the factory upper links in the AE86 rear four-link suspension. The adjustable design allows rear suspension geometry to be fine-tuned while replacing compliant factory-style bushings with pillowball rod ends for more direct axle control.

Each steel link uses rod-end pillowballs at both ends and provides a +20 mm to −10 mm adjustment range. This allows the effective upper-link length to be changed for suspension setup and rear pinion-angle correction, particularly on lowered or competition-focused AE86 builds.

The kit replaces both factory rear upper links and is designed as a bolt-on installation using the original mounting locations.

Key Features

• Adjustable rear upper control arm set
• Designed for the AE86 rear four-link suspension
• +20 mm to −10 mm length adjustment range
• Pillowball rod ends at both ends of each link
• Steel construction
• Replaces both factory rear upper control arms
• Reduced bushing compliance for more direct rear axle response
• Allows rear suspension geometry and pinion angle to be fine-tuned
• Direct bolt-on replacement design
• Includes a matched left-and-right pair

Rear Suspension Adjustment

The AE86 uses upper and lower links to locate the solid rear axle. Changing the effective length of the upper links allows the relationship between the axle housing and chassis to be adjusted.

The Formula Link design provides significantly more adjustment than a fixed-length factory-style control arm while its pillowball mounting points reduce movement associated with conventional rubber bushings. This makes the setup particularly suitable for lowered, grip, circuit, touge, and drift-oriented vehicles where consistent rear suspension response is important.

Because link length affects rear suspension geometry and pinion angle, the final setting should be established according to the vehicle's ride height and overall suspension configuration.

Vehicle Fitment

Toyota Corolla Levin

• 1983–1987 Toyota Corolla Levin – AE86 – 4A-GE – Rear Upper
• Coupe and 3-door hatchback applications

Toyota Sprinter Trueno

• 1983–1987 Toyota Sprinter Trueno – AE86 – 4A-GE – Rear Upper
• Coupe and 3-door hatchback applications

Toyota Corolla Sport GT-S

• 1985–1987 Toyota Corolla Sport GT-S – AE86 – 4A-GE – Rear Upper
• Coupe and 3-door hatchback applications

Fitment Notes

• Rear upper control arm application
• Sold as a pair for the left and right sides
• Replaces the factory rear upper suspension links
• Adjustable from +20 mm to −10 mm
• Pillowball rod ends are used at both ends
• Designed for vehicles retaining the AE86 solid-rear-axle four-link suspension layout
• Rear suspension geometry and pinion angle should be checked after installation
• Professional suspension setup is recommended for modified or competition vehicles

Product Specifications

Brand: CUSCO
Series: Formula Link
Product Type: Adjustable Rear Upper Control Arm Set
Position: Rear Upper
Suspension Type: Rear Four-Link
Construction: Steel
Joint Type: Pillowball Rod End – Both Ends
Adjustment Range: +20 mm to −10 mm
Fit Type: Vehicle Specific / Bolt-On
Quantity: 2 Control Arms

What's Included

• (2) CUSCO Formula Link Rear Upper Control Arms
• Left and right rear upper suspension links