BMW M340i M440i F3X Rear Toe Lockout Shims | XC3 Engineering Toyota Tapered bottom mount locking collar

Tapered bottom mount locking collar to prevent collar working loose

these cast iron rings are balance checked

This adapter kit ensures correct seat positioning

durability and reliability for both road use and spirited driving

All parts are inspected before shipment

BMW M340i M440i F3X Rear Toe Lockout Shims | XC3 Engineering Toyota Tapered bottom mount locking collarProduct Overview Stop rear toe misalignment with the XC3 Engineering Rear Toe Lockout Shims, a simple and robust solution for owners upgrading to adjustable rear toe arms on the BMW M340i M440i (F3X platform). The OEM rear suspension relies on eccentric adjustment bolts which can shift under load, leading to unwanted toe change and inconsistent handling. XC3 Toe Lockout Shims eliminate this weak point by replacing the eccentric adjustment with a