Ford F-250 Super Duty
2017–22 4x4
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.
Stock tireLT245/75R1731.5 in tall
Axle ratio3.31–4.3Factory, by trim
Crawl ratio52.4:1Best trim: XL 4x4 (17 in)
Angles17.9 · 22.6 · 22.1°Approach, breakover, departure
Clearance10.8 in8.2 to 10.8 in by trim
Highway mpg15Estimate, not EPA rated
Tire upgrades, worked out
XL 4x4 (17 in), 3.31s, from LT245/75R17| Tire | Height | Under the diffs | Speedo at 65 | RPM at 65 | Gears for daily | Open |
|---|---|---|---|---|---|---|
| 285/70R17 | 32.7 in | +0.6 in | 63 mph | 1,526 | Keep 3.31s | Open → |
| 33x10.50R17 | 33.0 in | +0.8 in | 62 mph | 1,512 | Keep 3.31s | Open → |
| 33x12.50R17 | 33.0 in | +0.8 in | 62 mph | 1,512 | Keep 3.31s | Open → |
| 255/80R17 | 33.1 in | +0.8 in | 62 mph | 1,509 | 3.42 | Open → |
| 285/75R17 | 33.8 in | +1.2 in | 60 mph | 1,475 | 3.55 | Open → |
| 315/70R17 | 34.4 in | +1.4 in | 60 mph | 1,452 | 3.55 | Open → |
| 35x11.50R17 | 35.0 in | +1.8 in | 58 mph | 1,426 | 3.73 | Open → |
| 35x12.50R17 | 35.0 in | +1.8 in | 58 mph | 1,426 | 3.73 | Open → |
| 37x11.50R17 | 37.0 in | +2.8 in | 55 mph | 1,349 | 3.91 | Open → |
| 37x12.50R17 | 37.0 in | +2.8 in | 55 mph | 1,349 | 3.91 | Open → |
Stock turns 1,586 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.
Trims
6 we have figures for| Trim | Tire | Transmission | Axle | Angles | Clearance | Open |
|---|---|---|---|---|---|---|
| XL 4x4 (17 in) | LT245/75R17 | 6-speed automatic, 6-speed automatic, 10-speed automatic | 3.31 / 3.55 / 3.73 / 4.3 | 17.9 · 22.6 · 22.1 | 8.2 in | Use → |
| XL 4x4 (LT265/70R17) | LT265/70R17 | 6-speed automatic, 6-speed automatic, 10-speed automatic | 3.31 / 3.55 / 3.73 / 4.3 | 17.9 · 22.6 · 22.1 | 8.2 in | Use → |
| XLT/Lariat/KR 4x4 (18 in) | LT275/70R18 | 6-speed automatic, 6-speed automatic, 10-speed automatic | 3.31 / 3.55 / 3.73 / 4.3 | 17.9 · 22.6 · 22.1 | 8.2 in | Use → |
| Lariat/KR/Platinum/Limited 4x4 (20 in) | LT275/65R20 | 6-speed automatic, 6-speed automatic, 10-speed automatic | 3.31 / 3.55 / 3.73 / 4.3 | 17.9 · 22.6 · 22.1 | 8.2 in | Use → |
| Tremor 7.3L gas | LT285/75R18 | 10-speed automatic | 4.3 | 31.7 · 21.2 · 24.5 | 10.8 in | Use → |
| Tremor 6.7L diesel | LT285/75R18 | 10-speed automatic | 3.55 | 31.7 · 21.2 · 24.5 | 10.8 in | Use → |
Size
- Wheelbase
- 159.8 in
- Front overhang
- 38.2 in
- Rear overhang
- 52 in
- Height
- 80 in
- Body
- Pickup
- Stock tires
- LT245/75R17, LT265/70R17, LT275/65R20, LT275/70R18, LT285/75R18
Transmissions and low range
- 6-speed automatic (TorqShift-G, 6.2L gas Super Duty)
- 4.17 · 2.34 · 1.52 · 1.14 · 0.87 · 0.69
- 6-speed automatic (6R140 TorqShift)
- 3.97 · 2.32 · 1.52 · 1.15 · 0.86 · 0.67
- 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 (Tremor: Dana LSD front)
- Rear
- Sterling 10.5-in or Dana M275 (7.3L Tremor owner spec lists M275 e-locker)
- 3.31 ratio
- XL 4x4 (17 in), XL 4x4 (LT265/70R17), XLT/Lariat/KR 4x4 (18 in), Lariat/KR/Platinum/Limited 4x4 (20 in)
- 3.55 ratio
- XL 4x4 (17 in), XL 4x4 (LT265/70R17), XLT/Lariat/KR 4x4 (18 in), Lariat/KR/Platinum/Limited 4x4 (20 in), Tremor 6.7L diesel
- 3.73 ratio
- XL 4x4 (17 in), XL 4x4 (LT265/70R17), XLT/Lariat/KR 4x4 (18 in), Lariat/KR/Platinum/Limited 4x4 (20 in)
- 4.3 ratio
- XL 4x4 (17 in), XL 4x4 (LT265/70R17), XLT/Lariat/KR 4x4 (18 in), Lariat/KR/Platinum/Limited 4x4 (20 in), Tremor 7.3L gas
Brakes
- Front rotor
- 14.29 in, 363 mm
- Front caliper piston
- 59.9 mm
- Rear rotor
- 14.29 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 15 mpg
- Where it comes from
- Road test, 75 mph highway (2017 F-250 Super Duty XL SuperCab 4x4, 6.2 gas, 6-speed auto)
- Source
- aol.com
Brake upgrades
What bigger tires need →- Alcon front big brake kit BKF1559AX5214.3 → 14.3 in rotor · 6-piston · 18 in wheels or bigger · $2,249Sale price on alconkits.com; listed original $4,100.
Aftermarket bumpers
17 listedMakers 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
- Addictive Desert Designs 2017-2022 Ford Super Duty Bomber Front Bumper | Heritage$2,999
- Body Armor 4x4 2017-2022 Ford F-250/F-350 Eco Series Front Winch Bumper$1,600 · winch ready
- DV8 Offroad 2017-2022 Ford F-250/350 Spec Series Front Bumper$1,400 · winch ready
- Fab Fours FS17-A4161-1 Ford F250/F350 Superduty 2017-2022 Premium Front Bumper Winch Ready No Guard225 lb · $2,680 · winch ready
- Hammerhead 600-56-0586 Ford F250/F350 Superduty 2017-2022 Front Bumper Winch Ready No Brushguard164 lb · $2,056 · winch ready
- Ranch Hand FSF201BL1 2017-2022 Ford F250/F350 Superduty Summit Front Bumper288 lb · $1,868
- Road Armor Stealth Front Winch Bumper - Texture Black 2017-2022 Ford F-250 F-350$2,642 · winch ready
- Smittybilt 613831-NB Ford F250/F350 Superduty 2021-2022 Adventure Series Front Bumper Winch Ready No Bar236 lb · $2,326 · winch ready
- Warn Ascent HD Front Bumper for 2017-2022 Ford F-250/F-350$3,300 · winch ready
- Westin 58-41175 Ford F250/F350 Superduty 2017-2022 Pro-Mod Front Bumper Non-Winch102 lb · $1,739
Rear 7
- Addictive Desert Designs 2017-2022 Ford Super Duty Bomber HD Rear Bumper$1,799
- Body Armor 4x4 2017-2022 Ford F-250/F-350 Eco Series Rear Bumper$1,000
- DV8 Offroad 2017-2026 Ford Super Duty Spec Series Rear Bumper$900
- Fab Fours Black Steel Elite Rear Bumper 2017-2022 Ford F250/F350 Superduty FS17-U4150-185 lb · $1,114
- Ranch Hand BBF231BLSS 2017-2026 Ford F250/F350 Superduty Legend Rear Bumper$1,030
- Road Armor Stealth Rear Winch Bumper - Texture Black 2017-2022 Ford F-250 F-350 F-450$1,899 · winch ready
- Westin 58-421175 Ford F250/F350 Superduty 2017-2022 Pro-Series Rear Bumper Black Finish$1,488
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: auto-brochures.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.