Ford F-250 Super Duty
2005–07 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.

Use this truck in the calculators

156.2 in wheelbase · 37.2 in front · 52.2 in rear overhang

Stock tireLT245/75R1731.5 in tall

Axle ratio3.73–4.3Factory, by trim

Crawl ratio67.7:1Best trim: F-250 XL 4x4 (17 in)

Angles25.7 · 15.6 · 12.8°Approach, breakover, departure

Clearance8.5 inFactory figure

Highway mpg13Estimate, not EPA rated

Tire upgrades, worked out

F-250 XL 4x4 (17 in), 3.73s, 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	1,794	Keep 3.73s	Open →
33x10.50R17	33.0 in	+0.8 in	62 mph	1,778	Keep 3.73s	Open →
33x12.50R17	33.0 in	+0.8 in	62 mph	1,778	Keep 3.73s	Open →
255/80R17	33.1 in	+0.8 in	62 mph	1,775	3.91	Open →
285/75R17	33.8 in	+1.2 in	60 mph	1,734	4.1	Open →
315/70R17	34.4 in	+1.4 in	60 mph	1,708	4.1	Open →
35x11.50R17	35.0 in	+1.8 in	58 mph	1,676	4.1	Open →
35x12.50R17	35.0 in	+1.8 in	58 mph	1,676	4.1	Open →
37x11.50R17	37.0 in	+2.8 in	55 mph	1,586	4.3	Open →
37x12.50R17	37.0 in	+2.8 in	55 mph	1,586	4.3	Open →

Stock turns 1,865 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

4 we have figures for

Trim	Tire	Transmission	Axle	Angles	Clearance	Open
F-250 XL 4x4 (17 in)	LT245/75R17	6-speed manual, 5-speed automatic	3.73 / 4.1 / 4.3	25.7 · 15.6 · 12.8	8.5 in	Use →
F-250 XLT 4x4 (LT265/70R17)	LT265/70R17	6-speed manual, 5-speed automatic	3.73 / 4.1 / 4.3	25.7 · 15.6 · 12.8	8.5 in	Use →
F-250 FX4/Lariat 4x4 (18 in)	LT275/70R18	6-speed manual, 5-speed automatic	3.73 / 4.1 / 4.3	25.7 · 15.6 · 12.8	8.5 in	Use →
F-250 4x4 (20 in)	LT275/65R20	6-speed manual, 5-speed automatic	3.73 / 4.1 / 4.3	25.7 · 15.6 · 12.8	8.5 in	Use →

Size

Wheelbase: 156.2 in
Front overhang: 37.2 in to 37.4 in
Rear overhang: 52.2 in
Height: 80 in
Body: Pickup
Stock tires: LT245/75R17, LT265/70R17, LT275/65R20, LT275/70R18

Transmissions and low range

6-speed manual (ZF S6-650): 5.79 · 3.3 · 2.1 · 1.31 · 1 · 0.72
4-speed automatic overdrive (4R100): 2.71 · 1.54 · 1 · 0.71
5-speed automatic (5R110W TorqShift): 3.11 · 2.2 · 1.54 · 1 · 0.71
Low range, np271: 2.72:1

Axles

Front: Dana 60 solid front (leaf springs 1999-2004, coil springs 2005-07)
Rear: Sterling 10.25/10.5-in full-floating
3.73 ratio: F-250 XL 4x4 (17 in), F-250 XLT 4x4 (LT265/70R17), F-250 FX4/Lariat 4x4 (18 in), F-250 4x4 (20 in)
4.1 ratio: F-250 XL 4x4 (17 in), F-250 XLT 4x4 (LT265/70R17), F-250 FX4/Lariat 4x4 (18 in), F-250 4x4 (20 in)
4.3 ratio: F-250 XL 4x4 (17 in), F-250 XLT 4x4 (LT265/70R17), F-250 FX4/Lariat 4x4 (18 in), F-250 4x4 (20 in)

Brakes

Front rotor: 13.66 in, 347 mm
Front caliper piston: 59.9 mm
Rear rotor: 13.39 in, 340 mm
Rear: disc (ventilated)

Suspension

Front: solid axle on coil springs with radius arms
Rear: leaf springs, solid axle
Rear layout: Leaf springs

Fuel economy

Highway, not EPA rated: about 13 mpg
Where it comes from: Owner average, 262 trucks, mixed driving (2006 F-250 Super Duty (mostly 6.0 Power Stroke 5R110W))
Source: fuelly.com

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

ARB 3436040 Ford F250/F350 Superduty 2005-2007 Deluxe Front Bumper Winch Ready with Grille Guard, Black Powder Coat Finish$2,674 · winch ready
Fab Fours FS05-A1251-1 Ford F250/F350 Superduty 2005-2007 Premium Front Bumper Winch Ready No Guard185 lb · $3,600 · winch ready
Frontier Truck Gear Frontier 300-10-5005 Ford F250/F350 Superduty 2005-2007 Original Front Bumper196 lb · $1,761
Fusion Bumpers Fusion 0507FORDFB Ford F250/F350 Superduty 2005-2007 Front Bumper$2,634 · winch ready
Hammerhead 600-56-0059 Ford F250/F350 Superduty 2005-2007 X-Series Front Bumper Winch Ready232 lb · $2,702 · winch ready
Ranch Hand FBF051BLR 2005-2007 Ford F250/F350 Superduty Legend Series Front Bumper$2,165
Road Armor Stealth Front Winch Bumper - Texture Black 2005-2007 Ford F-250 F-350 Excursion$2,642 · winch ready
Steelcraft HD11300R Ford F250/F350 Superduty 1999-2007 HD Front Bumper with Receiver274 lb · $1,904
Tough Country Traditional Front Bumper Ford F250/F350 Superduty 2005-2007 TFR0500FLRESM$2,471
TrailReady 12303B Ford F250/F350 Superduty 2005-2007 Extreme Duty Front Bumper Winch Ready Base$3,654 · winch ready

Rear 7

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

Tire sizeBigger tires: speedo, clearance, angles and brakes.Compare tires RegearHighway RPM on every ratio and mpg.Pick your gears Crawl ratioHow slow it creeps, against other trucks.Work out crawl SpeedometerWhat it really reads on new tires.Fix your speedo LinksAnti-squat and what a lift does to it.Check your links Your rigBuild sheet and measured angles.Start a build sheet LeaderboardsWhere 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.

Ford F-250 Super Duty2005–07 4x4