Kelltrac Adjustable Lowering Kit 4/8" Drop – Street Strip Series (2015–2026 F-150)
The Kelltrac 4/8" Street Strip Adjustable Lowering Kit is the most popular and proven F-150 setup in the Kelltrac lineup—responsible for building the brand’s reputation in the F-150 performance world. Designed for enthusiasts who want the perfect balance of aggressive stance, daily drivability, and true street/strip capability, this system delivers a major upgrade in traction, handling, and ride quality for 2015–2026 Ford F-150 trucks.
Developed and tested for over a year across real street, drag strip, and no-prep conditions, this kit provides increased front shock travel, height adjustability, and precision valving that works exceptionally well with the F-150’s leaf-spring suspension. Featuring spherical bearings up front and high-durometer polyurethane bushings in the rear, the Street Strip Series offers performance and comfort in one complete package. Whether daily driven or raced on the weekend, this kit transforms your truck the moment it’s installed.
-
The most popular Kelltrac lowering kit for 2015–2026 F-150
-
Delivers improved stance, ride quality, and race-ready traction
-
Developed specifically for street performance, no-prep, and drag racing
-
Features Viking Berserker valving and custom Landrum springs
-
Increased front shock travel for better suspension dynamics
-
Complete kit includes everything needed for installation
-
Ideal for users wanting performance without sacrificing comfort
Included Components
-
Front height-adjustable, double-adjustable Viking coilovers
-
Kelltrac coilover conversion mounts with adjustable shock position
-
Adjustable front camber kit
-
Rear Kelltrac TRIPLE-adjustable Viking shocks
-
Bilstein high-density foam bump stops
-
Monroe rear shock dust boots
-
Rear leaf-spring flip kit
-
Rear pinion-angle correction kit
-
Transmission shim kit
-
Ultra-low-profile rear bumpstops
-
New rear leaf-spring mounting hardware
Key Features
-
Designed exclusively for STREET & DRAG STRIP use
-
Viking Berserker shock valving tuned by Kelltrac
-
CNC-machined lightweight components
-
Adjustable compression & rebound damping
-
Spherical bearing front mounts for maximum response
-
High-durometer polyurethane rear bushings for comfort
-
Precision fitment engineered for high performance
Performance Benefits
-
Increased front suspension travel for improved weight transfer
-
Exceptional traction on prep and no-prep surfaces
-
Perfect balance of performance and street comfort
-
Tunable ride height to achieve your preferred stance
-
Quick 4-hour installation on most F-150s
-
Dramatically improved handling, stability, and control
Notes
-
Not designed for towing
-
Frame notching may be required depending on setup
-
Max front camber adjustment averages –2.0°
-
Adjustable upper control arms may be required for less negative camber
Vehicle Fitment
- 2015 Ford F-150
- 2016 Ford F-150
- 2017 Ford F-150
- 2018 Ford F-150
- 2019 Ford F-150
- 2020 Ford F-150
- 2021 Ford F-150
- 2022 Ford F-150
- 2023 Ford F-150
- 2024 Ford F-150
- 2025 Ford F-150
- 2026 Ford F-150
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
