American Expedition Vehicles has announced its second upfit package for the Ford Super Duty. The AEV FX370 slots below the FXL that came out earlier this year — same suspension, same bumpers, same build quality — but runs 37-inch tires instead of 40s and costs $6,000 less.
Pre-orders are open. Production starts in October. The package starts at $19,999, not including the cost of the truck.
What AEV Actually Is and Why It Matters Here
American Expedition Vehicles is not a typical aftermarket shop. The company builds upfit packages for Jeep, Chevrolet, GMC, and Ram at an OEM quality level — meaning the fit, finish, and engineering approach mirrors what a factory would do rather than what a weekend fabricator would bolt together in a garage. When Ford partnered with AEV for Super Duty packages, it was a signal that these trucks would meet a standard beyond typical lifted pickup builds.
The AEV FX370 carries that same engineering philosophy. Every component is designed specifically for the Super Duty platform — not adapted from a generic parts catalogue. The suspension geometry is developed for this truck. The bumpers are built around its specific dimensions. The tire and wheel combination is calibrated against the lift and the platform’s load ratings.
That distinction matters when a buyer is spending $19,999 before even touching the truck price. AEV charges what it charges because the engineering behind the package is genuine, not because it stamped a logo on someone else’s components.
What the AEV FX370 Package Includes
Four inches of lift from AEV’s DualSport suspension system, built specifically for the Ford Super Duty with Bilstein dampers. A winch-compatible AEV stamped steel front bumper replaces the factory unit. An AEV high-clearance rear bumper goes on at the back — protection from obstacles, improved departure angle on terrain, and visual mass that signals the truck’s purpose before it even moves.
Tires: 37-inch BFGoodrich All-Terrain T/A KO3. Wheels: AEV Salta 18-inch design.
The lift and AEV’s wheel-well clearance work accommodate the 37-inch tires without touching the sheetmetal. No flares. No cutting. The truck exits the build looking like a coherent product rather than a collection of modifications — which is the entire point of an OEM-quality upfit.
Interior gets AEV-embroidered headrests. Exterior gets the AEV graphics package with FX370 badging on the bedsides.
Options are confirmed to be available but the configurator has not been published yet. AEV has not specified which upgrades will be offered, though HighMark fender flares — standard on the FXL — are likely to appear on the options list given the platform overlap between the two packages.
How the AEV FX370 Compares to the FXL
The FXL is AEV’s first and larger Super Duty package. It runs 40-inch BFGoodrich HD-Terrain KT tires — three inches taller than the FX370’s 37s — and comes with HighMark fender flares to cover the additional width that 40-inch rubber demands. Beadlock-capable Katmai wheels replace the Salta design. Price: $25,999 to start.
The name is not a coincidence. FXL — XL is 40 in Roman numerals. AEV FX370 — 370 is the tire diameter. Naming convention tells you exactly where each package sits.
On the AEV FX370: no flares, no beadlock wheels, three fewer tire inches. $6,000 less. Everything structural — the DualSport suspension, the Bilstein dampers, the bumper design — is identical between the two builds. The difference is at the wheel and fender level, not in the engineering foundation.
For buyers who want AEV’s approach to the Super Duty without committing to a build that requires fender flares and the visual statement that 40-inch tires make, the AEV FX370 is the more usable daily-driver option. 37-inch tires on a four-inch lift still represent a dramatically capable off-road truck. The FXL is the truck for buyers who have decided they are going as far as possible. The AEV FX370 is the truck for everyone else who wants to go further than stock without going all the way to extreme.
37-Inch Tires on a Super Duty — What That Actually Means
A stock Ford Super Duty comes on 18 or 20-inch wheels with tires in the 265 to 275mm width range, typically around 32 to 33 inches in overall diameter depending on the specific setup. Moving to 37-inch tires is not a marginal change.
Larger diameter tires raise the effective gearing of the vehicle — the engine works slightly less hard at highway speeds, which can improve fuel economy modestly, but the larger rolling diameter also changes braking distances, suspension geometry loads, and the way the truck handles on loose terrain. AEV accounts for all of this in the DualSport suspension design rather than leaving the buyer to figure it out after the fact.
Ground clearance increases significantly with the combination of a four-inch lift and 37-inch tires. Approach and departure angles improve with the high-clearance bumpers. The AEV FX370 can go places and handle terrain grades that a stock Super Duty simply cannot, and it can do so without the drivetrain stress that comes from forcing oversized tires onto a suspension not designed for them.
Who the AEV FX370 Is Built For
The Super Duty platform attracts buyers who actually use their trucks as tools — ranchers, contractors, overlanders, emergency service operators, and buyers in regions where terrain conditions demand genuine off-road capability rather than a lifted street truck. AEV’s customer base within that group tends toward buyers who want the modifications done properly rather than cheaply, and who want the truck to behave as a coherent vehicle rather than a collection of aftermarket additions.
The AEV FX370 specifically serves buyers in that group who need the capability but also need the truck to function in everyday settings — loading docks, parking structures with height limits, job sites where a truck covered in fender flares and 40-inch tires would be impractical. 37-inch tires are still large by any reasonable measure. They are not the maximum. That restraint is a feature for a significant portion of the target audience.
At $19,999 for the package, the AEV FX370 sits at a price point that reflects the engineering quality without reaching the ceiling of what purpose-built overlanding trucks cost. A fully loaded Ram 1500 TRX — a factory performance pickup with comparable capability aspirations — costs over $90,000 before options. The AEV FX370 package on a base Super Duty can be had for considerably less while delivering a truck with more specific off-road engineering than the TRX’s factory setup provides.
Pricing, Timeline, and How to Order
AEV FX370 package price: $19,999 before options. The Ford Super Duty truck is purchased separately.
Production begins: October 2026.
Pre-orders: open now through AEV directly.
Options: confirmed to be available, not yet published. Full configurator expected before production begins.
The AEV FX370 sits $6,000 below the FXL. For buyers who have been waiting for an AEV Super Duty package without the full commitment of 40-inch tires and fender flares, October is when that option becomes a truck in a driveway.
FAQs
What is the AEV FX370?
American Expedition Vehicles’ second Ford Super Duty upfit package. Four-inch DualSport suspension with Bilstein dampers, 37-inch BFGoodrich All-Terrain T/A KO3 tires, AEV Salta 18-inch wheels, steel bumpers front and rear, and AEV interior branding.
How much does it cost?
$19,999 for the package. The Ford Super Duty truck is a separate purchase.
AEV FX370 vs FXL — what is the difference?
FXL: 40-inch tires, HighMark fender flares, Katmai beadlock wheels, $25,999 to start. AEV FX370: 37-inch tires, no flares, Salta wheels, $19,999 to start. Both share the same DualSport suspension, Bilstein dampers, and bumper design.
Does it need fender modifications?
No. The four-inch lift and AEV wheel-well clearance work handles the 37-inch tires without cutting or flares.
When does production start?
October 2026.
Can I order one now?
Yes. Pre-orders are open through AEV. The options list and configurator are not published yet.
What trucks does AEV build packages for?
Jeep, Chevrolet, GMC, Ram, and now Ford Super Duty with the FXL and AEV FX370 packages.
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