Ford F-150
2015–20 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
145 in wheelbase · 37.8 in front · 49.1 in rear overhang
in
Stock tire265/70R1731.6 in tall
Axle ratio3.15–4.1Factory, by trim
Crawl ratio19.3:1Best trim: Raptor SuperCab
Angles25.5 · 21 · 26°Approach, breakover, departure
Clearance9.9 in9.3 to 9.9 in by trim
Highway mpg23EPA

Tire upgrades, worked out

XL/XLT 4x4 (17 in), 3.31s, from 265/70R17
TireHeightUnder the diffsSpeedo at 65RPM at 65Gears for dailyOpen
285/70R1732.7 in+0.6 in63 mph1,526Keep 3.31sOpen →
33x10.50R1733.0 in+0.7 in62 mph1,512Keep 3.31sOpen →
33x12.50R1733.0 in+0.7 in62 mph1,512Keep 3.31sOpen →
255/80R1733.1 in+0.7 in62 mph1,509Keep 3.31sOpen →
285/75R1733.8 in+1.1 in61 mph1,4753.55Open →
315/70R1734.4 in+1.4 in60 mph1,4523.55Open →
35x11.50R1735.0 in+1.7 in59 mph1,4263.73Open →
35x12.50R1735.0 in+1.7 in59 mph1,4263.73Open →
37x11.50R1737.0 in+2.7 in56 mph1,3493.91Open →
37x12.50R1737.0 in+2.7 in56 mph1,3493.91Open →

Stock turns 1,579 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

6 we have figures for
TrimTireTransmissionAxleAnglesClearanceOpen
XL/XLT 4x4 (17 in)265/70R176-speed automatic, 10-speed automatic3.31 / 3.55 / 3.7325.5 · 21 · 269.4 inUse →
XLT/Lariat/FX4 4x4 (18 in)275/65R186-speed automatic, 10-speed automatic3.31 / 3.55 / 3.7325.5 · 21 · 269.4 inUse →
Lariat/KR/Platinum 4x4 (20 in)275/55R206-speed automatic, 10-speed automatic3.15 / 3.31 / 3.55 / 3.7325.5 · 21 · 269.4 inUse →
Heavy-Duty Payload PkgLT245/70R176-speed automatic, 10-speed automatic—26.1 · 19 · 269.3 inUse →
Raptor SuperCabLT315/70R1710-speed automatic4.130.2 · 22.9 · 23.19.9 inUse →
Raptor SuperCrewLT315/70R1710-speed automatic4.130.2 · 21.8 · 239.8 inUse →

Size

Wheelbase
134.2 in to 146 in
Front overhang
37.1 in to 37.8 in
Rear overhang
48.7 in to 49.1 in
Height
78 in
Body
Pickup
Stock tires
265/70R17, 275/55R20, 275/65R18, LT245/70R17, LT315/70R17

Transmissions and low range

6-speed automatic (6R80)
4.17 · 2.34 · 1.52 · 1.14 · 0.86 · 0.69
10-speed automatic (10R80)
4.696 · 2.985 · 2.146 · 1.769 · 1.52 · 1.275 · 1 · 0.854 · 0.689 · 0.636

Axles

Front
Ford 8.8-in IFS (Raptor: Torsen 4.10 optional)
Rear
Ford 8.8-in; 9.75-in with HD payload/Max Tow and Raptor e-locker
3.15 ratio
Lariat/KR/Platinum 4x4 (20 in)
3.31 ratio
XL/XLT 4x4 (17 in), XLT/Lariat/FX4 4x4 (18 in), Lariat/KR/Platinum 4x4 (20 in)
3.55 ratio
XL/XLT 4x4 (17 in), XLT/Lariat/FX4 4x4 (18 in), Lariat/KR/Platinum 4x4 (20 in)
3.73 ratio
XL/XLT 4x4 (17 in), XLT/Lariat/FX4 4x4 (18 in), Lariat/KR/Platinum 4x4 (20 in)
4.1 ratio
Raptor SuperCab, Raptor SuperCrew

Brakes

Front rotor
13.78 in, 350 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
23 mpg
Rated years
2015–2020, 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.