Cusco 120 420 A Camber Adjustable Pillowball Rear Upper Mount

The Cusco 120 420 A is a camber adjustable type pillowball rear upper mount designed as a high-performance replacement for the factory rubber upper mount. By eliminating the compliance built into OEM rubber mounts, this unit delivers more direct road surface feedback and keeps alignment specifications locked in at static position during aggressive cornering.

Key Features:

• Camber Adjustable Design: The camber angle can be adjusted by sliding the plate relative to the pillow body, allowing immediate alignment optimization after ride height or spring changes
• Pillowball Construction: Rigid pillowball assembly replaces factory rubber for improved steering response, stability, and braking performance
• Heavy-Duty Plate Material: Mounting plate is 6mm thick and constructed from 2017S super duralumin for strength with reduced weight
• Rear Application: Specifically engineered for the rear suspension position on AE92, AE101, and AE111 chassis
• Coilover Compatible: An essential upgrade when installing aftermarket coilovers, ensuring suspension compliance is handled by the damper and spring rather than the mount itself
• Improved High-Speed Stability: Provides a dramatic increase in stability over bumps and during high-speed cornering, keeping the vehicle on its intended line

Cusco upper mounts are available in several variants including camber adjustable, fixed, center lock, and gravel spec types. The 120 420 A is the camber adjustable rear version, ideal for street performance, track use, and rally applications where precise alignment control is critical. Proper top nut and collar selection is required based on the shock absorber being used.