Apex Chassis ProLock Extreme Duty Steering Kit | DOM Steel | 2017-2022 Ford F-250/F-350 4WD | SKU: KIT175

Brand: Apex Chassis | SKU: KIT175 | Material: Heavy-Wall DOM Steel (2.125" Tie Rod / 1.625" Drag Link) | Lift Range: 0–6" | Gas & PowerStroke Diesel | Free Shipping | Affirm & Afterpay Available

You Upgraded Your Super Duty. Now Your Factory Steering Is Giving Up.

You threw larger tires and a heavy-duty suspension setup under your late-model F-250 or F-350 to maximize its capability. What you didn't plan for was the front-end feedback. The exhausting steering wander on the highway, the tracking deflection over harsh terrain, and the looming threat of death wobble that turns a simple drive into a high-stress negotiation.

That isn't a design flaw in your truck's radius-arm suspension. That is your factory steering linkage—constructed from thin-walled, stamped steel tubing with weak adjusting sleeves—bowing and flexing under the increased leverage of heavy wheel assemblies. Under the brutal shock loads of heavy towing or off-road impacts, factory setups yield, introducing compliance and play that completely ruins your steering tighteness.

The Apex Chassis KIT175 is the permanent engineering fix. This extreme-duty complete steering system replaces your entire factory tie rod and drag link with an ultra-stout, solid-tracking layout. Engineered specifically for 2017–2022 Ford F-250 and F-350 Super Duty 4WD platforms, it replaces weak factory compliance with pure, unyielding mechanical strength to restore laser-straight tracking under maximum loads.

The Obsidian Take

We carry the Apex Chassis KIT175 because it completely overhauls the weak link in the Alumiduty front end rather than just replacing wear items. While some generic e-commerce listings use blanket text claiming this fits everything from sports cars to SUVs with options for "Dana 30 or Dana 44 flip kits," that is sloppy manufacturer filler text. The KIT175 is an ultra-specific, precision-engineered solid axle heavy truck assembly. It features a massive 2.125" diameter DOM SAE 1020 steel tie rod paired with a 1.625" DOM steel drag link, providing an immediate roadblock against structural bending.

Apex completely eliminates the thin factory adjusting sleeves and weak pinch clamps that slip adjustment under strain. The KIT175 utilizes proprietary Ninja Washers™—a mechanical keyway locking system combined with dual-thread jam nuts that physically locks your toe and drag link dimensions. It cannot back out or slip on the trail or under extreme towing stress. Additionally, Apex integrates a reversible drag link sleeve at the pitman arm end, allowing you to seamlessly run your steering stabilizer from either side on lifted configurations without binding the joints.

⚠️ Dual Steering Stabilizer Fitment Note: Because the Apex tie rod ends are engineered 1/8" larger in diameter than factory OE ends to ensure maximum joint life, certain aftermarket dual steering stabilizer brackets may require slight clearancing or modification to clamp perfectly around the oversized 2.125" DOM bar.

⚠️ BDS Track Bar Incompatibility: The oversized dimensions of this extreme-duty kit are NOT compatible with the BDS aftermarket adjustable track bar due to mechanical clearance constraints during full steering sweeps. If you are running a BDS track bar, contact us prior to ordering at (469) 407-7538 to verify geometry alterations.

⚠️ Solid Axle Geometry Fact: Generic documentation suggests checking factory "camber" during a routine steering swap. The 2017–2022 Ford Super Duty runs a solid front axle where factory camber is entirely fixed from the factory. This complete linkage upgrade directly controls your front toe-in profile and centers your steering wheel tracking plane.

Confirmed Fitment Matrix

CRITICAL FITMENT NOTE: This kit is geometrically optimized strictly for standard-track front axles on the P558 platform generation.

❌ This Unit Does NOT Fit:

• 2023–2026 Ford Super Duty (P702 Platform): Upgraded chassis components require alternative indexing.

• Wide-Track Axle Options: Will not fit specialized wide-track F-350 models or commercial F-450/F-550 chassis configurations.

• 2WD Ford Trucks: Two-wheel-drive Super Dutys utilize an entirely different twin-I-beam independent suspension completely lacking a solid-axle steering linkage.

• Ford F-150 Platforms: Light-duty independent front suspension architecture; entirely incompatible.

Technical Specifications

Before You Order — 4 Fitment Checkpoints

This is a high-mass, professional-grade steering setup. To eliminate return freight liabilities and install-day friction, audit these four checkmarks before checkout:

1. Model Year Boundaries: Confirm your Super Duty falls strictly between 2017 and 2022. The 2023+ refresh trucks feature updated steering gear paths and geometry profiles.

2. Standard vs. Wide Track: Look at your front fender flares and hub extensions. If your truck has a factory wide-track front axle option (commonly found on select tow packages), this kit will be too short.

3. Unsprung Mass & Dampening: At a rock-solid 61 lbs, this kit demands high-quality, performance-valved tracking shocks or an upgraded steering stabilizer. Ensure your front dampeners are up to managing this increased mass over harsh chatter.

4. Track Bar Integration: If your truck is running a suspension lift over 4 inches, a track bar relocation bracket is highly advised alongside this kit to keep the drag link and track bar on perfectly parallel operating angles.

Professional Installation & Mechanical Notes

• Mandatory Post-Install Alignment: Replacing your entire tie rod and drag link setup directly alters front-end toe settings and your steering wheel's center positioning. A professional front-end toe alignment must be completed immediately following installation before driving at highway speeds.

• Torque Specifications: * Castellated Nuts (At Knuckles & Pitman Arm): Torque tightly to 70–90 ft-lbs. Always advance the nut forward to align the window for the cotter pin; never back off a torqued nut to line up the pin hole.

  • Jam Nuts & Ninja Washers: Torque strictly to Apex Chassis installation parameters to properly lock the mechanical keyways against severe trail vibrations.

• Pre-Greased Advantage: While this kit features premium greasable housings with built-in zerk fittings and gull-winged grease grooves for continuous field service, it arrives pre-greased from the factory to ensure total internal bearing protection on day one.

INSTALLATION WARNING: Do not attempt to force fit this kit onto a BDS adjustable track bar setup, as physical binding will occur during steering articulation. Once unboxed and bolted to the knuckles, this heavy-duty unit is non-returnable.

Questions We Get Asked

Will this kit cure the death wobble on my 2019 Ford F-250? Yes. Death wobble is typically triggered by a combination of loose tracking geometry and worn or flexing linkages. The combination of oversized 4140 chromoly ball studs, thick-walled 2.125" DOM steel tubing, and zero-play Ninja locking washers removes the compliance that permits front-end oscillation to oscillate out of control.

Why does the description reference a "reversible drag link"? Apex developed an innovation where the pitman arm end features a straight-drilled eyelet paired with a reversible stainless steel taper sleeve. If your truck is lifted and you need to flip your steering stabilizer orientation to clear brackets, you can slide the taper sleeve in from either direction to mount your stabilizer flawlessly without binding.

Do I need specialized tools to adjust the alignment after installing this? No. Unlike factory setups that rely on rust-prone adjusting sleeves with cumbersome pinch clamps, the Apex kit utilizes clean, direct-threading rod ends secured by jam nuts. Your alignment technician can easily unlock the jam nuts to adjust toe accurately without fighting frozen factory threads.

Can I run this kit on a completely stock-height truck? Yes. The KIT175 is engineered to drop directly into factory steering paths at stock ride height all the way up to a 6-inch lift, provided you verify parallel tracking paths with your track bar on the higher lift profiles.

Why Buy From Obsidian Forged Auto Supply

• Authorized Apex Chassis Dealer — Full factory-backed manufacturer warranty tracking with direct product logistics.

• Free Freight Shipping, Lower 48 — Rapid heavy-duty transit with residential delivery included at zero hidden cost.

• Real Fitment Verification — Text (469) 407-7538 (SMS only) with your Super Duty’s model year, tire size, track width, and steering stabilizer brand. An Obsidian specialist will audit your front-end clearance specs before processing your order.

• Premium Financing Available — Safe, instant checkout flexibility via Affirm and Afterpay.

2017–2022 Ford F-250 / F-350 Super Duty 4WD. Extreme-Duty DOM Steel. Lock down your front end tracking. Add to cart.

Disclaimer

The technical and product information presented above is compiled from data provided directly by the component manufacturer. Obsidian Forged Auto Supply maintains a rigorous engineering audit workflow to ensure vehicle fitment compatibility; however, we are not responsible or liable for sudden manufacturer-driven specification updates, raw metadata changes, or accuracy discrepancies in the foundational data sheets provided by the manufacturer.

Unsure if your current aftermarket dual steering stabilizer brackets will clear this oversized 2.125" DOM tie rod? Text your front-end layout to (469) 407-7538 and an Obsidian technician will verify it.