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Chevrolet Colorado
2nd gen, 2015–22

Factory gearing, tires, angles and brakes for the Colorado, 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
128.3 in wheelbase · 37.78 in front · 47.2 in rear overhang
in
Stock tire265/70R1630.6 in tall
Axle ratio3.42Factory
Crawl ratio15.8:1Best trim: WT 4x4
Angles17.4 · 22 · 22.1°Approach, breakover, departure
Clearance8.9 in8.3 to 8.9 in by trim
Highway mpg24EPA

Tire upgrades, worked out

WT 4x4, 3.42s, from 265/70R16
TireHeightUnder the diffsSpeedo at 65RPM at 65Gears for dailyOpen
265/75R1631.6 in+0.5 in63 mph1,591Keep 3.42sOpen →
285/75R1632.8 in+1.1 in61 mph1,5343.73Open →
33x10.50R1633.0 in+1.2 in60 mph1,5263.73Open →
255/85R1633.1 in+1.2 in60 mph1,5233.73Open →
315/75R1634.6 in+2.0 in57 mph1,4554.1Open →
35x12.50R1635.0 in+2.2 in57 mph1,4394.1Open →

Stock turns 1,646 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

3 we have figures for
TrimTireTransmissionAxleAnglesClearanceOpen
WT 4x4265/70R16Hydra-matic 6L50 6-speed automatic, Hydra-matic 8L45 8-speed automatic3.4217.4 · 22 · 22.18.7 inUse →
LT / Z71 4x4255/65R17Hydra-matic 6L50 6-speed automatic, Hydra-matic 8L45 8-speed automatic3.4225 · 19.8 · 22.78.3 inUse →
ZR2 / ZR2 Bison (2017+)LT265/65R17Hydra-matic 8L45 8-speed automatic, Hydra-matic 6L50 6-speed automatic3.4230 · 23.5 · 23.58.9 inUse →

Size

Wheelbase
128.3 in to 128.5 in
Front overhang
37.78 in
Rear overhang
47.2 in
Height
70 in
Body
Pickup
Stock tires
255/65R17, 265/70R16, LT265/65R17

Transmissions and low range

Hydra-matic 6L50 6-speed automatic
4.065 · 2.371 · 1.551 · 1.157 · 0.853 · 0.674
Hydra-matic 8L45 8-speed automatic
4.615 · 3.038 · 2.065 · 1.658 · 1.259 · 1 · 0.849 · 0.658

Axles

Front
GM 7.6 in IFS (ZR2: e-locker)
Rear
GM 8.6 in (ZR2: e-locker)
3.42 ratio
All trims
Ratios made for it
3.73 · 4.1 · 4.56

Brakes

Front rotor
12.20 in, 310 mm
Rear rotor
12.75 in, 324 mm
Rear
disc

Suspension

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

Fuel economy

EPA highway
24 mpg
Rated years
2015–2022, 4WD

Frame

Rail depth
4.52 in
Outside of the rails
44.09 in
Rail bottom at the rear axle
24.98 in off the ground
Rail top at the rear axle
29.5 in off the ground
Measured on
265/70R16

Brake upgrades

What bigger tires need →

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 Colorado sees how it does on their tires and lift.

Front 6

Rear 6

Every calculator, set up for the Colorado

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 Colorado 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.