SPC Performance 21+ FORD F-150 Front Adj Upper Racing Control Arm Kit - 35685

The SPC Performance 35685 Front Adjustable Upper Racing Control Arm Kit is an engineered alignment solution purpose-built for the 2021 and newer Ford F-150. If you've added a lift kit, leveling kit, or larger tires to your F-150 and now struggle to bring caster and camber back into spec, these SPC Performance adjustable upper control arms are the direct-fit fix. Designed under SPC's racing-derived engineering philosophy, the 35685 kit gives you on-the-truck adjustability that the factory upper arm simply cannot provide — making it a go-to upgrade for lifted truck owners, alignment shops, and enthusiasts who refuse to leave tire wear and handling on the table.

Key Features & Benefits

• Adjustable Caster & Camber Correction: The primary reason F-150 owners turn to SPC Performance adjustable upper control arms is to restore factory-spec — or dial in custom — caster and camber angles after suspension modifications. The 35685 gives you that adjustment range in the upper arm, where it matters most on an independent front suspension truck.
• Racing-Grade Construction: SPC Performance builds their control arms with the durability demands of motorsport in mind. The 35685 is engineered to handle the stresses of both daily driving and spirited off-road use on the F-150 platform.
• Direct Replacement Fit: This kit is designed as a direct-fit replacement for the factory upper control arm on 2021+ F-150 trucks, meaning no cutting, welding, or fabrication is required for installation.
• Precision Alignment Without Compromise: Unlike static OEM arms or band-aid cam bolt solutions, SPC Performance adjustable upper control arms let you set alignment precisely — reducing uneven tire wear, improving straight-line tracking, and restoring proper steering feel on lifted applications.
• Trusted SPC Performance Engineering: SPC Performance is a widely respected name in the alignment and suspension parts space, with a product catalog spanning adjustable control arms, EZ Cam bolts, toe arms, and camber kits across hundreds of applications. The 35685 reflects that same commitment to adjustability and quality.
• Ideal for Lifted & Leveled F-150s: Even a modest 2-inch level on the 2021+ F-150 can push caster and camber outside acceptable ranges. The SPC 35685 is specifically designed to address this, making it a natural pairing with popular leveling and lift kit installations.

Specifications

• Brand: SPC Performance
• Part Number: 35685
• SKU: SPC35685
• Position: Front Upper Control Arm (Kit)
• Type: Adjustable Racing Control Arm Kit
• Application: 2021+ Ford F-150

Fitment

The SPC Performance 35685 is designed to fit 2021 and newer Ford F-150 trucks. This kit is specifically engineered for the front upper control arm position on this generation of F-150. If you are unsure whether your specific cab configuration, trim level, or drivetrain variant is compatible, reach out to the ThreePiece.us fitment team before ordering — they can confirm compatibility for your exact build. This part is not intended for prior-generation F-150 models, as suspension geometry and mounting points differ across generations.

What's in the Box

This listing is for the SPC Performance Front Adjustable Upper Racing Control Arm Kit (35685). As a kit, it includes the components necessary to replace and adjust the front upper control arm position on the 2021+ Ford F-150. For a precise parts manifest, contact ThreePiece.us or refer to the SPC Performance product documentation included with your order.

Why Buy from ThreePiece.us

• Free Shipping: Every order ships free — no minimum, no fine print.
• Affirm Financing: Split your purchase into manageable payments with Affirm financing available at checkout. The SPC Performance 35685 at $865.96 is easy to finance for a build done right.
• Expert Fitment Support: ThreePiece.us specializes in wheels, tires, and suspension. If you have questions about whether the SPC 35685 works with your specific lift height, leveling kit brand, or F-150 trim, the team can help you confirm before you buy.
• Focused Enthusiast Retailer: You're not buying from a generic marketplace — you're buying from a shop that understands suspension upgrades, alignment corrections, and what it takes to build a properly set-up truck.

Frequently Asked Questions

Q: What years of Ford F-150 does the SPC Performance 35685 fit?

A: The SPC Performance 35685 is designed for 2021 and newer Ford F-150 trucks. It is not a universal part and is not compatible with earlier F-150 generations. If your truck is on the border of a model year change or you have an atypical build, contact ThreePiece.us to verify fitment.

Q: Why do I need adjustable upper control arms on my lifted F-150?

A: When you lift or level a 2021+ F-150, the suspension geometry shifts — often pushing caster and camber outside of factory tolerances. The factory upper control arm is a fixed-length, non-adjustable component, so it cannot compensate for the geometry change. SPC Performance adjustable upper control arms like the 35685 allow your alignment shop to bring those angles back into spec (or set a custom alignment), which directly impacts tire wear, handling, and steering stability.

Q: Do I need to modify my truck to install the SPC Performance 35685?

A: The 35685 is designed as a direct-fit replacement for the factory front upper control arm on the 2021+ F-150, which means it is intended to install without cutting or welding. That said, a professional alignment is strongly recommended after installation to take full advantage of the arm's adjustability and ensure your truck is properly set up.

Q: Is the SPC Performance 35685 the same as SPC's EZ Cam or cam bolt kits?

A: No — the SPC Performance 35685 is a full replacement adjustable upper control arm kit, not a cam bolt or EZ Cam XR adjuster. SPC Performance also makes alignment cam bolt products for applications where a full arm replacement isn't needed, but those are separate products. The 35685 is a more comprehensive solution, replacing the arm itself for maximum adjustability on the 2021+ F-150.