Jeep Liberty
KK, 2008–12
Factory gearing, tires, angles and brakes for the Liberty, 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.
Tire upgrades, worked out
Sport 3.7 V6, 6-speed manual (2008; gone by 2010), 3.21s, from P225/75R16| Tire | Height | Under the diffs | Speedo at 65 | RPM at 65 | Gears for daily | Open |
|---|---|---|---|---|---|---|
| 265/75R16 | 31.6 in | +1.2 in | 60 mph | 1,861 | 3.73 | Open → |
| 285/75R16 | 32.8 in | +1.8 in | 58 mph | 1,794 | 3.73 | Open → |
| 33x10.50R16 | 33.0 in | +1.9 in | 58 mph | 1,785 | 3.73 | Open → |
| 255/85R16 | 33.1 in | +1.9 in | 58 mph | 1,782 | 3.73 | Open → |
| 315/75R16 | 34.6 in | +2.7 in | 55 mph | 1,703 | 3.73 | Open → |
| 35x12.50R16 | 35.0 in | +2.9 in | 54 mph | 1,683 | 3.73 | Open → |
Stock turns 2,012 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.
Trims
5 we have figures for| Trim | Tire | Transmission | Axle | Angles | Clearance | Open |
|---|---|---|---|---|---|---|
| Sport 3.7 V6, 6-speed manual (2008; gone by 2010) | P225/75R16 | NSG370 6-speed manual | 3.21 | 28.7 · 21.2 · 29.9 | 7.8 in | Use → |
| Sport 3.7 V6 automatic | P225/75R16 | 42RLE 4-speed automatic | 3.73 | 28.7 · 21.2 · 29.9 | 7.8 in | Use → |
| Sport with 235/70R16 all-terrain option | P235/70R16 | 42RLE 4-speed automatic | 3.73 | 28.7 · 21.2 · 29.9 | 7.8 in | Use → |
| Limited | P235/65R17 | 42RLE 4-speed automatic | 3.73 | 28.7 · 21.2 · 29.9 | 7.8 in | Use → |
| Jet / Limited 20-in (2011-12) | P245/50R20 | 42RLE 4-speed automatic | 3.73 | 28.7 · 21.2 · 29.9 | 7.8 in | Use → |
Size
- Wheelbase
- 106.1 in
- Front overhang
- 28.9 in
- Rear overhang
- 41.4 in
- Height
- 71 in
- Body
- SUV
- Stock tires
- P225/75R16, P235/65R17, P235/70R16, P245/50R20
Transmissions and low range
- NSG370 6-speed manual
- 4.46 · 2.61 · 1.72 · 1.25 · 1 · 0.84
- 42RLE 4-speed automatic
- 2.84 · 1.57 · 1 · 0.69
- Low range, mp1522 command-trac
- 2.72:1
- Low range, mp3022 selec-trac ii
- 2.72:1
Axles
- Front
- Dana 30 (IFS center section)
- Rear
- Chrysler 8.25
- 3.21 ratio
- Sport 3.7 V6, 6-speed manual (2008; gone by 2010)
- 3.73 ratio
- Sport 3.7 V6 automatic, Sport with 235/70R16 all-terrain option, Limited, Jet / Limited 20-in (2011-12)
- Ratios made for it
- 3.73
Brakes
- Front rotor
- 11.89 in, 302 mm
- Front caliper piston
- 65.9 mm
- Rear rotor
- 12.44 in, 316 mm
- Rear
- disc (solid, 316 x 12 mm)
Suspension
- Front
- double wishbone (short-and-long arm) IFS, coil springs
- Rear
- 5-link (4 trailing links plus track bar), solid axle, coil springs
- Rear layout
- Factory 4-link
Fuel economy
- EPA highway, automatic
- 21 mpg
- EPA highway, manual
- 22 mpg
- Rated years
- 2008–2012, 4WD
Every calculator, set up for the Liberty
Source: media.stellantisnorthamerica.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.