LRDT Long Range Desert ToolsLRDT
Apply

Ford F-150
SuperCab 6.5 ft, 2021–

Factory gearing, tires, angles and brakes for the F-150, and what the usual upgrades do to it. Every number is from the maker's own figures unless the calculators say otherwise. A few figures here are still waiting on a factory document; the calculators mark them.

Use this truck in the calculators
145.4 in wheelbase · 37.4 in front · 49.2 in rear overhang
in
Stock tire275/65R1832.1 in tall
Axle ratio3.31–3.73Factory, by trim
Crawl ratio46.2:1Best trim: 4x4 (2021-2023)
Angles24.6 · 20.2 · 25.4°Approach, breakover, departure
Clearance9.8 in9.4 to 9.8 in by trim
Highway mpg22EPA

Tire upgrades, worked out

4x4 (2021-2023), 3.31s, from 275/65R18
TireHeightUnder the diffsSpeedo at 65RPM at 65Gears for dailyOpen
285/65R1832.6 in+0.3 in64 mph1,411Keep 3.31sOpen →
33x12.50R1833.0 in+0.5 in63 mph1,394Keep 3.31sOpen →
275/70R1833.2 in+0.5 in63 mph1,387Keep 3.31sOpen →
35x11.50R1835.0 in+1.5 in60 mph1,3144.1Open →
35x12.50R1835.0 in+1.5 in60 mph1,3144.1Open →
37x12.50R1837.0 in+2.5 in56 mph1,2434.1Open →

Stock turns 1,434 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

2 we have figures for
TrimTireTransmissionAxleAnglesClearanceOpen
4x4 (2021-2023)275/65R18Ford 10R80 10-speed automatic3.31 / 3.55 / 3.7324.6 · 20.2 · 25.49.4 inUse →
4x4 (2024+)275/65R18Ford 10R80 10-speed automatic3.31 / 3.55 / 3.7325.2 · 20 · 26.99.8 inUse →

Size

Wheelbase
145.4 in
Front overhang
37.4 in
Rear overhang
49.2 in
Height
76 in
Body
Pickup
Stock tires
275/65R18

Transmissions and low range

Ford 10R80 10-speed automatic (also 10R80 MHT hybrid)
4.696 · 2.985 · 2.146 · 1.769 · 1.52 · 1.275 · 1 · 0.854 · 0.689 · 0.636
Low range, standard part-time
2.64:1
Low range, torque on demand
2.64:1
Low range, two-speed
2.64:1

Axles

Front
Ford 8.8-in IFS front (10-bolt); Torsen LSD optional (Tremor)
Rear
Ford Super 8.8-in (12-bolt, 2015+) or 9.75-in (12-bolt) solid; open or e-locker
3.31 ratio
4x4 (2021-2023), 4x4 (2024+)
3.55 ratio
4x4 (2021-2023), 4x4 (2024+)
3.73 ratio
4x4 (2021-2023), 4x4 (2024+)
Ratios made for it
4.1 · 4.11 · 4.56 · 4.88

Brakes

Front rotor
13.78 in, 350 mm
Front caliper piston
51.0 mm
Rear rotor
13.23 in, 336 mm
Rear
disc (ventilated, 1 x 54 mm sliding, integral EPB)

Suspension

Front
double wishbone IFS, coilovers
Rear
leaf springs, solid axle
Rear layout
Leaf springs

Fuel economy

EPA highway
22 mpg
Rated years
2021–2026, 4WD

Aftermarket bumpers

17 listed

Makers almost never publish angles, bottom heights or how far a bumper tucks, so these fill in as owners measure them. Measured yours? Add it on the rig page and every owner of this F-150 sees how it does on their tires and lift.

Front 10

Rear 7

Every calculator, set up for the F-150

Tire sizeBigger tires: speedo, clearance, angles and brakes.Compare tiresRegearHighway RPM on every ratio and mpg.Pick your gearsCrawl ratioHow slow it creeps, against other trucks.Work out crawlSpeedometerWhat it really reads on new tires.Fix your speedoLinksAnti-squat and what a lift does to it.Check your linksYour rigBuild sheet and measured angles.Start a build sheetLeaderboardsWhere the F-150 ranks against every stock truck.See where it ranks

Source: fromtheroad.ford.com.

Use at your own risk. These calculators are here to help you plan and to inform your decisions, not to sign off on a build. Many numbers are estimates worked out from factory figures, and some factory figures are not yet confirmed. Check every number against your own truck, its manuals and a qualified shop before you buy parts, cut, weld, lift, regear or drive on it. Long Range Desert Tools is not liable for anything you do based on these calculators or their results. The full terms are in our policies.