Chevrolet Silverado 1500
T1XX, 2019+
Factory gearing, tires, angles and brakes for the Silverado 1500, 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.
Stock tire255/70R1731.1 in tall
Axle ratio3.23–3.42Factory, by trim
Crawl ratio43.2:1Best trim: WT / Custom 4x4
Angles30 · 23 · 23.9°Approach, breakover, departure
Clearance11.2 in7.8 to 11.2 in by trim
Highway mpg20EPA
Tire upgrades, worked out
WT / Custom 4x4, 3.23s, from 255/70R17| Tire | Height | Under the diffs | Speedo at 65 | RPM at 65 | Gears for daily | Open |
|---|---|---|---|---|---|---|
| 265/70R17 | 31.6 in | +0.3 in | 64 mph | 1,451 | Keep 3.23s | Open → |
| 285/70R17 | 32.7 in | +0.8 in | 62 mph | 1,402 | 3.73 | Open → |
| 33x10.50R17 | 33.0 in | +1.0 in | 61 mph | 1,390 | 3.73 | Open → |
| 33x12.50R17 | 33.0 in | +1.0 in | 61 mph | 1,390 | 3.73 | Open → |
| 255/80R17 | 33.1 in | +1.0 in | 61 mph | 1,387 | 3.73 | Open → |
| 285/75R17 | 33.8 in | +1.4 in | 60 mph | 1,356 | 3.73 | Open → |
| 315/70R17 | 34.4 in | +1.7 in | 59 mph | 1,335 | 3.73 | Open → |
| 35x11.50R17 | 35.0 in | +2.0 in | 58 mph | 1,311 | 3.73 | Open → |
| 35x12.50R17 | 35.0 in | +2.0 in | 58 mph | 1,311 | 3.73 | Open → |
| 37x11.50R17 | 37.0 in | +3.0 in | 55 mph | 1,240 | 4.1 | Open → |
| 37x12.50R17 | 37.0 in | +3.0 in | 55 mph | 1,240 | 4.1 | Open → |
Stock turns 1,477 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.
Trims
7 we have figures for| Trim | Tire | Transmission | Axle | Angles | Clearance | Open |
|---|---|---|---|---|---|---|
| WT / Custom 4x4 | 255/70R17 | Hydra-matic 8L90 8-speed automatic, Hydra-matic 6L80 6-speed automatic, Hydra-matic 10L80 10-speed automatic | 3.23 / 3.42 | 30* · 23* · 23.9* | 7.8 in | Use → |
| LT / RST 4x4 (18 in) | 265/65R18 | Hydra-matic 8L90 8-speed automatic, Hydra-matic 10L80 10-speed automatic | 3.23 / 3.42 | 30* · 23* · 23.9* | 7.8 in | Use → |
| Custom Trail Boss / LT Trail Boss | LT275/65R18 | Hydra-matic 8L90 8-speed automatic, Hydra-matic 10L80 10-speed automatic | 3.23 / 3.42 | 30 · 23 · 23.9 | 10.9 in | Use → |
| LTZ / High Country 4x4 (20 in) | 275/60R20 | Hydra-matic 10L80 10-speed automatic | 3.23 / 3.42 | 30* · 23* · 23.9* | 7.8 in | Use → |
| High Country 22 in option | 275/50R22 | Hydra-matic 10L80 10-speed automatic | 3.23 / 3.42 | 30* · 23* · 23.9* | 7.8 in | Use → |
| ZR2 (2022+) | LT275/70R18 | Hydra-matic 10L80 10-speed automatic | 3.23 | 31.8 · 23.4 · 23.3 | 11.2 in | Use → |
| GMC Sierra AT4X (2023+) | LT275/70R18 | Hydra-matic 10L80 10-speed automatic | 3.23 | 34 · 22.7 · 23 | 10.8 in | Use → |
* The maker doesn’t publish this figure for that trim, so it shows the closest trim’s (same tire where we have one), or a close relative’s that shares the same body or front end. Hover the star to see which.
Size
- Wheelbase
- 147.4 in to 147.5 in
- Front overhang
- 37.3 in
- Rear overhang
- 46.9 in
- Height
- 76 in
- Body
- Pickup
- Stock tires
- 255/70R17, 265/65R18, 275/50R22, 275/60R20, LT275/65R18, LT275/70R18
Transmissions and low range
- Hydra-matic 6L80 6-speed automatic
- 4.03 · 2.36 · 1.53 · 1.15 · 0.85 · 0.67
- Hydra-matic 8L90 8-speed automatic
- 4.56 · 2.97 · 2.08 · 1.69 · 1.27 · 1 · 0.85 · 0.65
- Hydra-matic 10L80 10-speed automatic
- 4.7 · 2.99 · 2.16 · 1.78 · 1.53 · 1.28 · 1 · 0.85 · 0.69 · 0.64
- Low range, autotrac
- 2.69:1
Axles
- Front
- GM 9.25 in IFS (ZR2: AAM with e-locker)
- Rear
- GM 9.5 in (9.76 in with Max Trailering/ZR2)
- 3.23 ratio
- WT / Custom 4x4, LT / RST 4x4 (18 in), Custom Trail Boss / LT Trail Boss, LTZ / High Country 4x4 (20 in), High Country 22 in option, ZR2 (2022+), GMC Sierra AT4X (2023+)
- 3.42 ratio
- WT / Custom 4x4, LT / RST 4x4 (18 in), Custom Trail Boss / LT Trail Boss, LTZ / High Country 4x4 (20 in), High Country 22 in option
- Ratios made for it
- 3.73 · 4.1 · 4.56
Brakes
- Front rotor
- 13.50 in, 343 mm
- Front caliper piston
- 51.0 mm
- Rear rotor
- 13.58 in, 345 mm
- Rear
- disc (vented, 345 x 20 mm)
Suspension
- Front
- double wishbone IFS, coilovers
- Rear
- leaf springs, solid axle
- Rear layout
- Leaf springs
Fuel economy
- EPA highway
- 20 mpg
- Rated years
- 2019–2026, 4WD
Brake upgrades
What bigger tires need →- Brembo 6-piston front brake kit (accessory, 410 mm rotors)+23% brake torque13.5 → 16.1 in rotor · 6-pistonNot checked.
- Baer 6T front brake kit 4301682B-2 (GM 1500 trucks 1999-on, SUVs 2000-on)13.5 → 13.5 in rotor · 6-piston · 17 in wheels or bigger · $1,900Baer list price (black calipers).
Aftermarket bumpers
19 listedMakers 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 Silverado 1500 sees how it does on their tires and lift.
Front 11
- Addictive Desert Designs 2019-2021 Chevy Silverado 1500 Stealth Fighter Front Bumper$2,699 · winch ready
- Body Armor 4x4 2019-2022 Chevrolet Silverado 1500 Ambush Front Bumper (NON-WINCH)$1,100
- Chassis Unlimited 2019-2021 Chevrolet Silverado 1500 Octane Winch Bumper$1,795 · winch ready
- DV8 Offroad 2019-2021 Chevy Silverado 1500 Spec Series Front Bumper$1,300 · winch ready
- Fab Fours CS19-X4051-1 Chevy Silverado 1500 2019-2022 Matrix Front Bumper Winch Ready No Guard$2,460 · winch ready
- Fishbone Offroad Rockfish Winch Bumper for 2019-2021 Chevy Silverado FB22389$1,000 · winch ready
- Frontier Truck Gear Frontier 600-21-9010 Chevy Silverado 1500 2019-2022 Xtreme Front Bumper Black Powder Coated Light Bar Compatible$1,830
- Iron Bull Bumpers 2019-2021 Chevrolet Silverado 1500 Front Bumper | Parking Sensor Cutouts Available$1,700
Show 3 more
Rear 8
- Body Armor 4x4 2019-2026 Chevrolet SILVERADO/GMC Sierra 1500 Ambush Rear Bumper$1,000
- Chassis Unlimited 2019-2026 GMC/CHEVY 1500 Octane Rear Bumper$1,627
- DV8 Offroad 2019-2026 Chevy Silverado & GMC Sierra 1500 Tube Rear Bumper$1,100
- Fab Fours CS19-E4052-1 Chevy Silverado 1500 2019-2025 Vengeance Rear Bumper$1,570
- Fishbone Offroad Rockfish Rear Bumper for 2019-2025 Chevy Silverado FB22394$800
- Iron Bull Bumpers 2019-2025 Chevrolet/GMC Sierra 1500 Rear Bumper Single Exhaust| Parking Sensor Cutouts Available$1,850 · winch ready
- Ironman 4x4 Raid Rear Bumper Kit for Chevrolet Silverado 1500 (2019+)$949
- Throttle Down Kustoms 2019-2021 Chevrolet Silverado 1500 Rear Bumper$1,250
Every calculator, set up for the Silverado 1500
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 Silverado 1500 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.