Jeep Gladiator
JT, 2020–
Factory gearing, tires, angles and brakes for the Gladiator, and what the usual upgrades do to it. Every number is from the maker's own figures unless the calculators say otherwise.
Stock tire245/75R1731.5 in tall
Axle ratio3.73–4.1Factory, by trim
Crawl ratio84.1:1Best trim: Rubicon
Angles40.8 · 18.4 · 25°Approach, breakover, departure
Clearance11.6 in10 to 11.6 in by trim
Highway mpg22EPA, 23 with the manual
Tire upgrades, worked out
Sport / Sport S, 3.73s, from 245/75R17| Tire | Height | Under the diffs | Speedo at 65 | RPM at 65 | Gears for daily | Open |
|---|---|---|---|---|---|---|
| 285/70R17 | 32.7 in | +0.6 in | 63 mph | 1,794 | Keep 3.73s | Open → |
| 33x10.50R17 | 33.0 in | +0.8 in | 62 mph | 1,778 | Keep 3.73s | Open → |
| 33x12.50R17 | 33.0 in | +0.8 in | 62 mph | 1,778 | Keep 3.73s | Open → |
| 255/80R17 | 33.1 in | +0.8 in | 62 mph | 1,775 | 4.1 | Open → |
| 285/75R17 | 33.8 in | +1.2 in | 60 mph | 1,734 | 4.1 | Open → |
| 315/70R17 | 34.4 in | +1.4 in | 60 mph | 1,708 | 4.1 | Open → |
| 35x11.50R17 | 35.0 in | +1.8 in | 58 mph | 1,676 | 4.1 | Open → |
| 35x12.50R17 | 35.0 in | +1.8 in | 58 mph | 1,676 | 4.1 | Open → |
| 37x11.50R17 | 37.0 in | +2.8 in | 55 mph | 1,586 | 4.56 | Open → |
| 37x12.50R17 | 37.0 in | +2.8 in | 55 mph | 1,586 | 4.56 | Open → |
Stock turns 1,865 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 |
|---|---|---|---|---|---|---|
| Sport / Sport S | 245/75R17 | D478 6-speed manual, 850RE 8-speed automatic | 3.73 / 4.1 | 40.8 · 18.4 · 25 | 10.0 in | Use → |
| Willys | LT255/75R17 | D478 6-speed manual, 850RE 8-speed automatic | 3.73 | 40.8 · 18.4 · 25 | 10.0 in | Use → |
| Overland (2020-2023) | 255/70R18 | D478 6-speed manual, 850RE 8-speed automatic | 3.73 | 40.8 · 18.4 · 25 | 10.0 in | Use → |
| Mojave | LT285/70R17 | D478 6-speed manual, 850RE 8-speed automatic | 4.1 | 44.7 · 20.9 · 25.5 | 11.6 in | Use → |
| Rubicon | LT285/70R17 | D478 6-speed manual, 850RE 8-speed automatic | 4.1 | 43.4 · 20.3 · 26 | 11.1 in | Use → |
| Rubicon X (2024+) | LT285/70R17 | D478 6-speed manual, 850RE 8-speed automatic | 4.1 | 43.4 · 20.3 · 26 | 11.1 in | Use → |
Size
- Wheelbase
- 137.3 in
- Front overhang
- 29.7 in
- Rear overhang
- 51 in
- Height
- 75 in
- Body
- Pickup
- Stock tires
- 245/75R17, 255/70R18, LT255/75R17, LT285/70R17
Transmissions and low range
- D478 6-speed manual (2020-2024 only)
- 5.13 · 2.63 · 1.53 · 1 · 0.81 · 0.72
- 850RE 8-speed automatic
- 4.71 · 3.13 · 2.1 · 1.67 · 1.28 · 1 · 0.84 · 0.67
- Low range, command-trac (nv241)
- 2.72:1
- Low range, selec-trac (mp3022)
- 2.72:1
- Low range, rock-trac (nv241or)
- 4:1
- Low range, rock-trac (mp3022or)
- 4:1
Axles
- Front
- Dana M210 'Dana 44' (3rd-gen Dana HD)
- Rear
- Dana M220 'Dana 44' (3rd-gen Dana HD)
- 3.73 ratio
- Sport / Sport S, Willys, Overland (2020-2023)
- 4.1 ratio
- Sport / Sport S, Mojave, Rubicon, Rubicon X (2024+)
- Ratios made for it
- 3.73 · 4.1 · 4.56 · 4.88 · 5.13 · 5.38
Brakes
- Front rotor
- 12.90 in, 328 mm
- Rear rotor
- 13.60 in, 345 mm
- Rear
- disc (vented 22 mm, single-piston)
Suspension
- Front
- 5-link (4 links plus track bar), coil springs
- Rear
- 5-link (4 links plus track bar), coil springs
- Rear layout
- Factory 4-link
Fuel economy
- EPA highway, automatic
- 22 mpg
- EPA highway, manual
- 23 mpg
- Rated years
- 2020–2026, 4WD
Brake upgrades
What bigger tires need →- Teraflex Delta front and rear brake kit (5x5)+10% brake torque12.9 → 14.0 in rotor · 4-piston · 17 in wheels or bigger · $2,809
- Teraflex Delta big brake kit 4403480 (8x6.5, for 1-ton axle swaps)+10% brake torque12.9 → 14.0 in rotor · 4-piston · 17 in wheels or bigger · $2,554
Aftermarket bumpers
27 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 Gladiator sees how it does on their tires and lift.
Front 14
- Addictive Desert Designs 2018-2026 Jeep JL/JT Stealth Fighter Front Bumper$1,899 · winch ready
- ARB Deluxe Bumper (Jeep JL/JT)$1,596 · winch ready
- Body Armor 4x4 2007-2027 Jeep Wrangler JK/JL & Gladiator JT Orion Mid-width Front Bumper$850 · winch ready
- Chassis Unlimited 2020+ Jeep Gladiator & JL Octane Front Bumper$1,326 · winch ready
- DV8 Offroad 2007-2026 Jeep Wrangler JK/JL & Gladiator JT | FS-1 Series Stubby Front Bumper$800 · winch ready
- Fab Fours Front Winch Bumper Ghost Stubby With Guard JL24-B5152-1 2018-2025 Jeep Wrangler JL$660 · winch ready
- Ironman 4x4 Raid Full Length Front Bumper Kit for Jeep Wrangler JL/JLU (2018+)$649 · winch ready
- Motobilt Crusher Front Bumper for Jeep JL and JT Gladiator70 lb · $749 · winch ready
Show 6 more
- Next Venture Motorsports JL/JT Aluminum Front Bumper - Featherweight Series (Stubby)42 lb · $1,000 · winch ready
- Road Armor Stealth Front Full Width Winch Bumper Pre-Runner Guard | Rubicon Only - Texture Black 2018-2025 Jeep JL JLU JT$1,697 · winch ready
- Rusty's Off-Road Rusty's Bumper - Xtreme Trail Front Bumper w/ Sylvania LED Slim Lights - (JL,JT)$963 · winch ready
- Savvy Off Road 2018-2026 Jeep JL/JLU/JT Front Bumper Without Hoop (ALUMINUM Krawler Lite) Savvy Offroad$799 · winch ready
- Throttle Down Kustoms Prospector Series Front Bumper (JL/JLU)$650 · winch ready
- Warn Elite Front Bumper for 2018-2026 Jeep Wrangler JL / 2020-2026 Jeep Gladiator JT$1,650 · winch ready
Rear 13
- Addictive Desert Designs 2020-2023 Jeep Gladiator JT Stealth Fighter Rear Bumper$1,799
- ARB Rear Bumper (Jeep JT Gladiator)$1,346
- Body Armor 4x4 2019-2027 Jeep Gladiator JT Rear Bumper$673
- Chassis Unlimited 2020-2022 Jeep Gladiator Octane Rear Bumper$1,275
- DV8 Offroad 2020-2026 Jeep Gladiator JT Spec Series Rear Bumper$850
- Fishbone Offroad 2020-Up Jeep Gladiator JT Mako Rear Bumper FB22149$670
- Motobilt Hammer Rear Bumper for Jeep JT Gladiator72 lb · $1,099
- Next Venture Motorsports JT Aluminum Rear Bumper - Featherweight Series$2,100
Show 5 more
- Road Armor Stealth Rear Full Width Winch Bumper - Texture Black 2020-2025 Jeep JT$1,627 · winch ready
- Rusty's Off-Road Rusty's Jeep JT Gladiator Rear Trail Bumper$1,555
- Savvy Off Road 2020-2026 Jeep JT Gladiator Rear Bumper (ALUMINUM Krawler Lite) Savvy Offroad$1,269
- Throttle Down Kustoms Gladiator Rear Bumper$1,250
- Warn Elite Rear Bumper for 2019-2025 Jeep Gladiator JT$1,600
Every calculator, set up for the Gladiator
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 Gladiator ranks against every stock truck.See where it ranks
Source: s3.amazonaws.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.