TCI launches 4x4 chassis for 1967-1972 Ford F-100

Total Cost Involved Engineering has introduced a direct-replacement 4x4 chassis for the 1967-1972 Ford F-100 using new Honeycomb-style insert frame rails. The chassis aims to boost rigidity, steering clearance and off-road performance, with standard Currie axles and optional one-ton upgrades.

Why it matters: - The new chassis gives 1967-1972 Ford F-100 owners a modern 4x4 foundation without starting a custom build from scratch. - The design targets stronger torsional rigidity, better packaging and improved suspension control for street and off-road use. - TCI backs the chassis with a 6-year/60,000-mile warranty.

What happened: - Total Cost Involved Engineering introduced a direct replacement 4x4 chassis for the 1967-1972 Ford F-100. - The chassis uses the company’s new Honeycomb style insert frame rails. - The announcement was made Sept. 8, 2026. - TCI said the chassis is an American, fixture-welded replacement system.

The details: - The Honeycomb rails are boxed and include a 3-foot mesh insert down the middle of the frame rails for added torsional rigidity. - The front half of the frame is widened for more steering and header clearance. - The chassis is built around late-model Ford engine and transmission platforms with a driver-side output Atlas transfer case. - TCI worked with Currie Enterprises and RockJock on the front and rear 4-link suspensions. - The link bars are maximized in length to reduce wheelbase change through travel and limit roll steer. - The coil-over angle stays close to vertical to keep the motion ratio near 1:1 and allow wide mounts for roll control. - The included Borgeson steering box is a direct replacement for 1966-1977 Broncos. - RockJock high steer forged knuckles, forged outer tie rods and 5-lug unit-bearing hubs are based on the Jeep JL platform. - 8-lug hubs are optional. - Currie high-pinion 44 front and high-pinion 60 rear complete axles come standard. - The chassis includes cab, bed core support, engine, transmission and bumper brackets. - Optional Currie Extreme 60 one-ton axles are available. - The custom Currie housings are designed to improve bearing lubrication for sustained highway miles or steep inclines. - Standard axle equipment includes 4.56 gears, Tru-Trac Posi, 68-inch wheel mounting surface width, 1350 yokes, full-floater rears and lockers.

Between the lines: - TCI is positioning the chassis as a turnkey upgrade for builders who want modern geometry and drivetrain compatibility in a classic Ford truck. - The parts mix suggests an emphasis on durability, articulation and predictable handling rather than a purely show-oriented setup. - The company is leaning on well-known component partners to reduce uncertainty for buyers choosing a major chassis swap.

What's next: - Interested buyers can email sales@totalcostinvolved.com, call 866.925.4976 or visit TCI’s blog for more information on the chassis and available options. - TCI also directs customers to its social channels for updates on Facebook, Instagram, YouTube and X. - The company says more details are available on the chassis warranty and option packages through its website and sales team.