KellTrac Mustang Rear Knuckle Toe Bearing Kit, Pair (KTI-BUK15RK) - 2015–2026 Mustang
The KellTrac Rear Knuckle Toe Bearing Kit is engineered to eliminate deflection and restore precise rear suspension control in 2015–2026 S550 and S650 Mustangs. From the factory, rubber toe bushings allow excessive movement under load, leading to wheel hop, inconsistent alignment, and unpredictable handling. This kit replaces those weak points with precision spherical bearings that lock the rear knuckles exactly where they belong.
Designed for high-performance street driving, drag racing, road course use, and autocross, these bearings positively locate the rear axle knuckle assemblies within the chassis and suspension. By removing bushing deflection entirely, the KellTrac toe bearing kit delivers sharper response, improved traction, and a noticeably more planted feel—especially under hard acceleration and aggressive cornering.
Built using only premium materials and race-proven components, this system is highly recommended for performance-focused Mustang owners who demand consistency and confidence from their rear suspension.
Features
- Most proven rear knuckle toe bearing solution for S550 and S650 Mustangs
- Fits all factory and aftermarket toe links
- Super-strong CNC-machined 6061-T6 billet aluminum bodies
- High-quality QA1 spherical bearings
- Precision fitment for maximum suspension control
- Engineered for demanding performance applications
Benefits
- Reduces wheel hop and improves traction
- Eliminates rubber and polyurethane bushing deflection
- Improves handling response and overall vehicle feel
- Helps stabilize toe alignment under heavy loads
- Can assist in reducing driveline vibrations
- Minimizes fore, aft, and lateral knuckle movement
Fitment
- 2015 Ford Mustang
- 2016 Ford Mustang
- 2017 Ford Mustang
- 2018 Ford Mustang
- 2019 Ford Mustang
- 2020 Ford Mustang
- 2021 Ford Mustang
- 2022 Ford Mustang
- 2023 Ford Mustang
- 2024 Ford Mustang
- 2025 Ford Mustang
- 2026 Ford Mustang
Kelltrac Terms Of Service
Kelly considers his Kelltrac line to be a specialty line for a unique customer base and has his own terms of service in addition to Beefcake Racing's. You must accept these terms on all Kelltrac orders. Please read shipping times, cancellation, and returns. If time is of the essence, we do have other options that can ship right away / quicker. Just reach out to one of our sales associates at Beefcake Racing.
Cancellations & Returns
KellTrac Innovations does not accept product returns. Once your order ships, you own it and we will not accept it back - NO EXCEPTIONS. We do not accept order cancellations after the product has shipped. If you understand and accept this please check the box and continue checking out. If you do not accept this, please stop and discontinue the order process. Thanks!
Due to the custom nature of our business and product offerings, we charge a 20% order cancellation fee, period, non-negotiable, no matter who you are. Orders can only be cancelled before the product ships. We do not accept order cancellations after the product has shipped. If you understand and accept this please check the box and continue checking out. If you do not accept this, please stop and discontinue the order process. Thanks!
Leadtime
Please be aware that most orders ship within 2-4 weeks. In some (rare) cases, orders can take up to 6-8 weeks to ship. Holidays can severely impact these lead times. *DO NOT CONTACT US ABOUT YOUR ORDER UNLESS IT IS OLDER THAN 20 BUSINESS DAYS!* If you understand and accept this please check the box and continue checking out. If you do not accept this, please stop and discontinue the order process. Thanks!
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

