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Ford F-250 Super Duty
2023+ Tremor

Factory gearing, tires, angles and brakes for the F-250 Super Duty, 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
159.8 in wheelbase · 38.3 in front · 52 in rear overhang
in
Stock tireLT285/75R1834.8 in tall
Axle ratio3.55–4.3Factory, by trim
Crawl ratio52.4:1Best trim: Tremor 7.3L gas
Angles29.3 · 21.9 · 22.2°Approach, breakover, departure
Clearance10.5 inFactory figure
Highway mpg20Estimate, not EPA rated

Tire upgrades, worked out

Tremor 7.3L gas, 4.3s, from LT285/75R18
TireHeightUnder the diffsSpeedo at 65RPM at 65Gears for dailyOpen
37x12.50R1837.0 in+1.1 in61 mph1,6054.56Open →

Stock turns 1,705 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

2 we have figures for
TrimTireTransmissionAxleAnglesClearanceOpen
Tremor 7.3L gasLT285/75R1810-speed automatic4.329.3 · 21.9 · 22.210.5 inUse →
Tremor 6.7L diesel / HO dieselLT285/75R1810-speed automatic3.5529.3 · 21.9 · 22.210.5 inUse →

Size

Wheelbase
159.8 in
Front overhang
38.3 in
Rear overhang
52 in
Height
80 in
Body
Pickup
Stock tires
LT285/75R18

Transmissions and low range

10-speed automatic (10R140 TorqShift)
4.615 · 2.919 · 2.132 · 1.773 · 1.519 · 1.277 · 1 · 0.851 · 0.687 · 0.632
Low range, sd17
2.64:1

Axles

Front
Dana 60 solid front with limited-slip (Tremor)
Rear
Dana M275 / Sterling 10.5 e-locker (unverified)
3.55 ratio
Tremor 6.7L diesel / HO diesel
4.3 ratio
Tremor 7.3L gas

Brakes

Front rotor
14.29 in, 363 mm
Front caliper piston
60.0 mm
Rear rotor
14.30 in, 363 mm
Rear
disc (ventilated)

Suspension

Front
solid axle, radius arms with track bar, coil springs
Rear
leaf springs, solid axle
Rear layout
Leaf springs

Fuel economy

Highway, not EPA rated
about 20 mpg
Where it comes from
Road test, 75 mph highway (2023 F-250 Super Duty Platinum Tremor Crew Cab 4x4, 6.7 HO Power Stroke, 10R140)
Source
aol.com

Brake upgrades

What bigger tires need →

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-250 Super Duty sees how it does on their tires and lift.

Front 10

Rear 7

Every calculator, set up for the F-250 Super Duty

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-250 Super Duty 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.