Ford F-150
2004–08 4x4

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

138.5 in wheelbase · 36.9 in front · 48.4 in rear overhang

Stock tireP235/75R1730.9 in tall

Axle ratio3.55–4.1Factory, by trim

Crawl ratio11.6:1Best trim: Heavy-Duty Payload Pkg 4x4

Angles25 · 21.2 · 25.2°Approach, breakover, departure

Clearance8.1 inFactory figure

Highway mpg17EPA, 18 with the manual

Tire upgrades, worked out

XL/XLT 4x4 Regular Cab/SuperCab, 3.55s, from P235/75R17

Tire	Height	Under the diffs	Speedo at 65	RPM at 65	Gears for daily	Open
265/70R17	31.6 in	+0.4 in	64 mph	1,718	Keep 3.55s	Open →
285/70R17	32.7 in	+0.9 in	61 mph	1,660	3.73	Open →
33x10.50R17	33.0 in	+1.1 in	61 mph	1,645	3.73	Open →
33x12.50R17	33.0 in	+1.1 in	61 mph	1,645	3.73	Open →
255/80R17	33.1 in	+1.1 in	61 mph	1,642	3.73	Open →
285/75R17	33.8 in	+1.5 in	59 mph	1,605	3.91	Open →
315/70R17	34.4 in	+1.7 in	58 mph	1,580	3.91	Open →
35x11.50R17	35.0 in	+2.1 in	57 mph	1,551	4.1	Open →
35x12.50R17	35.0 in	+2.1 in	57 mph	1,551	4.1	Open →
37x11.50R17	37.0 in	+3.1 in	54 mph	1,467	4.3	Open →
37x12.50R17	37.0 in	+3.1 in	54 mph	1,467	4.3	Open →

Stock turns 1,758 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/XLT 4x4 Regular Cab/SuperCab	P235/75R17	4-speed automatic overdrive	3.55 / 3.73	25 · 21.2 · 25.2	8.1 in	Use →
XL/STX/XLT 4x4 (P255)	P255/70R17	4-speed automatic overdrive	3.55 / 3.73	25 · 21.2 · 25.2	8.1 in	Use →
FX4 / Lariat / XLT 18-in	P275/65R18	4-speed automatic overdrive	3.55 / 3.73	25 · 21.2 · 25.2	8.1 in	Use →
FX4 / Lariat 20-in	P275/55R20	4-speed automatic overdrive	3.55 / 3.73	26 · 21.2 · 25.3	8.1 in	Use →
Heavy-Duty Payload Pkg 4x4	LT245/70R17	4-speed automatic overdrive	3.73 / 4.1	26 · 21.2 · 25.3	8.1 in	Use →
FX4 / Lariat LT tire option	LT275/65R18	4-speed automatic overdrive	3.55 / 3.73	26 · 21.2 · 25.3	8.1 in	Use →

Size

Wheelbase: 138.5 in
Front overhang: 36.9 in
Rear overhang: 48.4 in
Height: 76 in
Body: Pickup
Stock tires: LT245/70R17, LT275/65R18, P235/75R17, P255/70R17, P275/55R20, P275/65R18

Transmissions and low range

4-speed automatic overdrive (4R75E): 2.84 · 1.55 · 1 · 0.7

Axles

Front: Ford 8.8-in IFS (coil-over)
Rear: Ford 8.8-in; 9.75-in (brochure '10.5-in gear set' wording) with heavy-duty payload/4.10
3.55 ratio: XL/XLT 4x4 Regular Cab/SuperCab, XL/STX/XLT 4x4 (P255), FX4 / Lariat / XLT 18-in, FX4 / Lariat 20-in, FX4 / Lariat LT tire option
3.73 ratio: XL/XLT 4x4 Regular Cab/SuperCab, XL/STX/XLT 4x4 (P255), FX4 / Lariat / XLT 18-in, FX4 / Lariat 20-in, Heavy-Duty Payload Pkg 4x4, FX4 / Lariat LT tire option
4.1 ratio: Heavy-Duty Payload Pkg 4x4

Brakes

Front rotor: 12.99 in, 330 mm
Front caliper piston: 54.0 mm
Rear rotor: 13.70 in, 348 mm
Rear: disc (ventilated)

Suspension

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

Fuel economy

EPA highway, automatic: 17 mpg
EPA highway, manual: 18 mpg
Rated years: 2004–2008, 4WD

Aftermarket bumpers

12 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

Frontier Truck Gear Frontier 300-10-4005 Ford F150 2004-2005 Original Front Bumper196 lb · $1,761
Frontier Truck Gear Frontier 600-10-4005 Ford F150 2004-2005 Xtreme Front Bumper140 lb · $1,611
Hammerhead 600-56-0124 Ford F150 2004-2008 Front Bumper Winch Ready Pre-Runner190 lb · $2,183 · winch ready
Hammerhead 600-56-0542 Ford F150 2004-2008 Front Bumper Low Profile Pre-Runner Non-Winch154 lb · $2,026
Iron Bull Bumpers Iron Bull Heavy Duty Front Bumper 2004-2008 Ford F150 #21$2,599
N-Fab F044RSP-TX Ford F150 2004-2008 RSP Front Bumper Pre-Runner150 lb · $1,562
Throttle Down Kustoms BU05F150 Ford F150 2005-2008 Front Bumper$2,260
TrailReady 12201B Ford F150 2004-2008 Extreme Duty Front Bumper Winch Ready Base$3,654 · winch ready
TrailReady 12201P Ford F150 2004-2008 Extreme Duty Front Bumper Winch Ready with Pre-Runner Guard$3,965 · winch ready
Truck Defender Aluminum Front Bumper Ford F150 2004-2008 Standard Polished 1F-0408$3,221

Rear 2

Every calculator, set up for the F-150

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-150 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-1502004–08 4x4