Jeep Grand Cherokee
WK, 2005–10

Factory gearing, tires, angles and brakes for the Grand Cherokee, 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
109.5 in wheelbase · 33.6 in front · 43.5 in rear overhang
in
Stock tireP245/65R1729.5 in tall
Axle ratio3.55–3.73Factory, by trim
Crawl ratio36.4:1Best trim: 3.0 CRD diesel (2007-08)
Angles32.3 · 20.4 · 27.5°Approach, breakover, departure
Clearance8.2 in8 to 8.2 in by trim
Highway mpg19EPA

Tire upgrades, worked out

Laredo / Limited 3.7 V6 Quadra-Trac II (2008-10), 3.55s, from P245/65R17
TireHeightUnder the diffsSpeedo at 65RPM at 65Gears for dailyOpen
265/70R1731.6 in+1.0 in61 mph2,0373.73Open →
285/70R1732.7 in+1.6 in59 mph1,9683.9Open →
33x10.50R1733.0 in+1.7 in58 mph1,9513.9Open →
33x12.50R1733.0 in+1.7 in58 mph1,9513.9Open →
255/80R1733.1 in+1.8 in58 mph1,9473.9Open →
285/75R1733.8 in+2.1 in57 mph1,9034.1Open →
315/70R1734.4 in+2.4 in56 mph1,8734.1Open →
35x11.50R1735.0 in+2.7 in55 mph1,8394.56Open →
35x12.50R1735.0 in+2.7 in55 mph1,8394.56Open →

Stock turns 2,179 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

5 we have figures for
TrimTireTransmissionAxleAnglesClearanceOpen
Laredo / Limited 3.7 V6 Quadra-Trac II (2008-10)P245/65R17W5A580 5-speed automatic3.5532.3 · 20.4 · 27.58.2 inUse →
4.7 / 5.7 V8 Quadra-Trac II or Quadra-Drive II, 17-inP245/65R17545RFE 5-speed automatic3.7332.3 · 20.4 · 27.58.2 inUse →
2005-06 V8 with P235/65R17P235/65R17545RFE 5-speed automatic3.7334.1 · 20.6 · 27.18.0 inUse →
Overland / Limited 18-in (2008-10)P245/60R18545RFE 5-speed automatic3.7332.3 · 20.4 · 27.58.2 inUse →
3.0 CRD diesel (2007-08)P245/65R17W5J400 5-speed automatic3.7332.3 · 20.4 · 27.58.2 inUse →

Size

Wheelbase
109.5 in
Front overhang
33.6 in
Rear overhang
43.5 in
Height
69 in
Body
SUV
Stock tires
P235/65R17, P245/60R18, P245/65R17

Transmissions and low range

W5A580 5-speed automatic (3.7)
3.59 · 2.19 · 1.41 · 1 · 0.83
545RFE 5-speed automatic (4.7, 5.7)
3 · 1.67 · 1 · 0.75 · 0.67
W5J400 5-speed automatic (3.0 CRD)
3.59 · 2.19 · 1.41 · 1 · 0.83
Low range, nv245 quadra-trac ii
2.72:1
Low range, nv245 quadra-drive ii
2.72:1

Axles

Front
Chrysler 200 mm (7.9 in) IFS front; ELSD with Quadra-Drive II
Rear
Chrysler 8.25 (213 mm) live axle; ELSD with Quadra-Drive II
3.55 ratio
Laredo / Limited 3.7 V6 Quadra-Trac II (2008-10)
3.73 ratio
4.7 / 5.7 V8 Quadra-Trac II or Quadra-Drive II, 17-in, 2005-06 V8 with P235/65R17, Overland / Limited 18-in (2008-10), 3.0 CRD diesel (2007-08)
Ratios made for it
3.07 · 3.55 · 3.73 · 3.9 · 4.1 · 4.56 · 4.88 · 5.13

Brakes

Front rotor
12.91 in, 328 mm
Front caliper piston
48.0 mm
Rear rotor
12.60 in, 320 mm
Rear
disc (solid, 320 x 14 mm)

Suspension

Front
short/long arm IFS, coil springs
Rear
5-link (4 links plus track bar), coil springs
Rear layout
Factory 4-link

Fuel economy

EPA highway
19 mpg
Rated years
2005–2010, 4WD

Aftermarket bumpers

1 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 Grand Cherokee sees how it does on their tires and lift.

Front 1

Rear

None listed yet.