FOX 803-35-015 Billet Aluminum Upper Control Arms for 2021-2025 Ford F-150

The Upper Control Arms (UCA) are consider the first step when building a mid-travel truck, to unlock the vehicles off-road capability through tough terrain. Our engineers spent time evaluating suspension geometry and optimized the UCAs specifically for the intended vehicle. Lifting a vehicle compromises the OEM alignment specification by introducing too much caster, FOX UCAs provide the necessary correction to maintain the vehicle's alignment while maximizing droop travel for more articulation off-road. Additional caster helps reduce wander at high-speed for more confidence behind the wheel. You'll notice a precise comfortable ride on rougher roads and trails. FORD F-150 | UPPER CONTROL ARM | (2021-2025) FOX Upper Control Arms feature a lifetime warranty on the aluminum arm. This is backed by a 12 month warranty on all serviceable components and finishes.

• Stainless-steel taper misalignment spacers and 12-point bolts at the steering knuckle ensure a reliable and precise fit. Bolt-on the UCAs without any modification to the vehicle chassis
• The 3/4" chromoly heim joints are fully adjustable allowing for fine tuning of caster and camber. The Kevlar fiber reinforced PTFE liner to prevent binding and long-lasting precision
• FOX upper control arms are CNC machined in the USA from T6061 billet aluminum. Type II anodization offers superior corrosion resistance and feature a laser etched FOX logo
• 1.25" uniballs are comprised of a hard chrome plated ball and low carbon steel race to increase service life. A PTFE liner mitigates noise to keep the ride comfortable
• Stainless-Steel Taper Misalignment Spacers And 12-Point Bolts At The Steering Knuckle Ensure A Reliable And Precise Fit
• 1.25 in. Uniballs Are Comprised Of A Hard Chrome Plated Ball And Low Carbon Steel Race To Increase Service Life
• The 3/4 in. Chromoly Heim Joints Are Fully Adjustable Allowing For Fine Tuning Of Caster And Camber
• Type II Anodization Offers Superior Corrosion Resistance And Feature A Laser Etched FOX Logo
• The Kevlar Fiber Reinforced PTFE Liner To Prevent Binding And Long-Lasting Precision
• FOX Upper Control Arms Are CNC Machined In The USA From T6061 Billet Aluminum
• Bolt-On The Ucas w/o Any Modification To The Vehicle Chassis
• PTFE Liner Mitigates Noise To Keep The Ride Comfortable

Upgrade the front suspension of your 2021-2025 Ford F-150 with FOX 803-35-015 Upper Control Arms. Designed as a foundational upgrade for mid-travel suspension builds, these control arms help restore alignment geometry after lifting while increasing available droop travel and off-road articulation. Optimized specifically for the F-150 platform, they provide improved caster adjustment, more predictable handling, and enhanced confidence on rough roads and trails.

Each FOX Upper Control Arm is CNC machined in the USA from T6061 billet aluminum and finished with Type II anodization for excellent corrosion resistance. Adjustable 3/4-inch chromoly heim joints allow precise caster and camber tuning, while Kevlar fiber-reinforced PTFE liners help prevent binding and maintain smooth, long-lasting operation. The 1.25-inch uniballs use hard chrome-plated balls, low-carbon steel races, and PTFE liners to promote durability while helping minimize operating noise.

The FOX 803-35-015 control arms use stainless-steel taper misalignment spacers and 12-point steering-knuckle bolts for a precise, reliable fit. They install as a bolt-on upgrade without chassis modifications. The aluminum arms are covered by a limited lifetime warranty, while serviceable components and finishes include a 12-month warranty. Fitment includes 2021-2025 Ford F-150 applications, including the 2021 and 2022 model years listed in the available fitment data. Professional installation and a complete alignment are recommended after installation.

Key Product Specifications & Technical Data

• Brand: FOX
• Part Number: 803-35-015
• Application: Front upper control arms
• Vehicle: Ford F-150
• Model Years: 2021-2025
• Arm Material: T6061 billet aluminum
• Joint Type: Adjustable 3/4-inch chromoly heim joints and 1.25-inch uniballs
• Installation: Bolt-on design with no chassis modification required

What's Included

• FOX upper control arm assembly
• Stainless-steel taper misalignment spacers
• 12-point steering-knuckle hardware

Features:

• Alignment Correction: Helps restore suspension geometry after lifting while providing additional caster for improved high-speed stability.
• Adjustable Heim Joints: Fully adjustable 3/4-inch chromoly heim joints allow fine tuning of caster and camber.
• Billet Aluminum Construction: CNC-machined T6061 billet aluminum arms deliver strength and durability with a Type II anodized finish for corrosion resistance.
• Durable Uniball Design: 1.25-inch hard chrome-plated uniballs with low-carbon steel races and PTFE liners support long service life and reduced operating noise.

Fitments:
2021 Ford F-150 King Ranch
2021 Ford F-150 Lariat
2021 Ford F-150 Limited
2021 Ford F-150 Platinum
2021 Ford F-150 Police Responder
2021 Ford F-150 Raptor
2021 Ford F-150 SSV
2021 Ford F-150 Tremor
2021 Ford F-150 XL
2021 Ford F-150 XLT
2022 Ford F-150 King Ranch
2022 Ford F-150 Lariat
2022 Ford F-150 Limited
2022 Ford F-150 Platinum
2022 Ford F-150 Police Responder
2022 Ford F-150 Raptor
2022 Ford F-150 SSV
2022 Ford F-150 Tremor
2022 Ford F-150 XL
2022 Ford F-150 XLT
2023 Ford F-150 King Ranch
2023 Ford F-150 Lariat
2023 Ford F-150 Limited
2023 Ford F-150 Platinum
2023 Ford F-150 Police Responder
2023 Ford F-150 Raptor
2023 Ford F-150 SSV
2023 Ford F-150 Tremor
2023 Ford F-150 XL
2023 Ford F-150 XLT
2024 Ford F-150 King Ranch
2024 Ford F-150 Lariat
2024 Ford F-150 Platinum
2024 Ford F-150 Police Responder
2024 Ford F-150 Raptor
2024 Ford F-150 SSV
2024 Ford F-150 STX
2024 Ford F-150 Tremor
2024 Ford F-150 XL
2024 Ford F-150 XLT
2025 Ford F-150 King Ranch
2025 Ford F-150 Lariat
2025 Ford F-150 Platinum
2025 Ford F-150 Police Responder
2025 Ford F-150 Raptor
2025 Ford F-150 SSV
2025 Ford F-150 STX
2025 Ford F-150 Tremor
2025 Ford F-150 XL
2025 Ford F-150 XLT
2026 Ford F-150 King Ranch
2026 Ford F-150 Lariat
2026 Ford F-150 Platinum
2026 Ford F-150 Police Responder
2026 Ford F-150 Raptor
2026 Ford F-150 SSV
2026 Ford F-150 STX
2026 Ford F-150 Tremor
2026 Ford F-150 XL
2026 Ford F-150 XLT

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1