Ford Bronco
4-door, 2021–

Factory gearing, tires, angles and brakes for the Bronco, 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
116.1 in wheelbase · 25.6 in front · 34.2 in rear overhang
in
Stock tire255/70R1630.1 in tall
Axle ratio3.73–4.7Factory, by trim
Crawl ratio94.7:1Best trim: Badlands
Angles35.5 · 20 · 29.5°Approach, breakover, departure
Clearance13.1 in8.3 to 13.1 in by trim
Highway mpg18EPA

Tire upgrades, worked out

Base, 3.73s, from 255/70R16
TireHeightUnder the diffsSpeedo at 65RPM at 65Gears for dailyOpen
265/75R1631.6 in+0.8 in62 mph1,6384.46Open →
285/75R1632.8 in+1.4 in60 mph1,5794.46Open →
33x10.50R1633.0 in+1.5 in59 mph1,5714.46Open →
255/85R1633.1 in+1.5 in59 mph1,5674.46Open →
315/75R1634.6 in+2.3 in56 mph1,4984.46Open →
35x12.50R1635.0 in+2.5 in56 mph1,4814.46Open →

Stock turns 1,725 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

8 we have figures for
TrimTireTransmissionAxleAnglesClearanceOpen
Base255/70R16Ford 10R60 10-speed automatic, Getrag MT88 7-speed manual3.73 / 4.4635.5 · 20 · 29.58.3 inUse →
Big Bend255/75R17Ford 10R60 10-speed automatic, Getrag MT88 7-speed manual3.73 / 4.27 / 4.4638.3 · 22.1 · 32.19.4 inUse →
Black Diamond265/70R17Ford 10R60 10-speed automatic, Getrag MT88 7-speed manual4.4638.2 · 23.6 · 329.4 inUse →
Outer Banks255/70R18Ford 10R60 10-speed automatic3.73 / 4.2738.3 · 22.1 · 32.19.4 inUse →
Badlands285/70R17Ford 10R60 10-speed automatic, Getrag MT88 7-speed manual4.46 / 4.741.3 · 24.1 · 34.510.5 inUse →
Everglades315/70R17Ford 10R60 10-speed automatic4.737.8 · 26.3 · 37.111.7 inUse →
Sasquatch Package315/70R17Ford 10R60 10-speed automatic, Getrag MT88 7-speed manual4.743.2 · 26.3 · 3711.5 inUse →
Raptor37x12.50R17Ford 10R60 10-speed automatic4.747.2 · 30.8 · 40.513.1 inUse →

Size

Wheelbase
116.1 in to 116.5 in
Front overhang
25.6 in to 27.4 in
Rear overhang
32.7 in to 34.2 in
Height
74 in
Body
SUV
Stock tires
255/70R16, 255/70R18, 255/75R17, 265/70R17, 285/70R17, 315/70R17, 37x12.50R17

Transmissions and low range

Getrag MT88 7-speed manual (6+1 crawler), 2.3L only
6.588 · 4.283 · 2.365 · 1.453 · 1 · 0.776 · 0.646
Ford 10R60 10-speed automatic
4.714 · 2.997 · 2.149 · 1.769 · 1.521 · 1.275 · 1 · 0.853 · 0.689 · 0.636
Low range, standard part-time
2.72:1
Low range, advanced 4x4
3.06:1

Axles

Front
Dana AdvanTEK M190 (open) or M210 (e-locker on Badlands, Wildtrak and Sasquatch)
Rear
Dana 44 AdvanTEK M220 solid (8.66 in / 220 mm ring gear)
3.73 ratio
Base, Big Bend, Outer Banks
4.27 ratio
Big Bend, Outer Banks
4.46 ratio
Base, Big Bend, Black Diamond, Badlands
4.7 ratio
Badlands, Everglades, Sasquatch Package, Raptor
Ratios made for it
4.46 · 4.7 · 4.88 · 5.13 · 5.38

Brakes

Front rotor
12.24 in, 311 mm
Rear rotor
12.13 in, 308 mm
Rear
disc (24 mm, single-piston 54 mm, integral EPB)

Suspension

Front
twin A-arm IFS, coilovers
Rear
5-link (4 links plus panhard), coil springs
Rear layout
Factory 4-link

Fuel economy

EPA highway, automatic
18 mpg
EPA highway, manual
18 mpg
Rated years
2021–2026, 4WD

Frame

Measured on
315/70R17

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 Bronco sees how it does on their tires and lift.