Jeep Grand Cherokee
ZJ, 1993–98

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
105.9 in wheelbase · 31.9 in front · 38.6 in rear overhang
in
Stock tireP225/75R1528.3 in tall
Axle ratio3.55–3.73Factory, by trim
Crawl ratio38.9:1Best trim: 4.0 I6, 15-in wheels (SE / Laredo)
Angles36.5 · 17 · 29.3°Approach, breakover, departure
Clearance8.3 in7.7 to 8.3 in by trim
Highway mpg18EPA, 20 with the manual

Tire upgrades, worked out

4.0 I6, 15-in wheels (SE / Laredo), 3.55s, from P225/75R15
TireHeightUnder the diffsSpeedo at 65RPM at 65Gears for dailyOpen
235/75R1528.9 in+0.3 in64 mph2,122Keep 3.55sOpen →
31x10.50R1531.0 in+1.4 in59 mph1,9773.9Open →
32x11.50R1532.0 in+1.9 in57 mph1,9154.11Open →
33x10.50R1533.0 in+2.4 in56 mph1,8574.11Open →
33x12.50R1533.0 in+2.4 in56 mph1,8574.11Open →
35x12.50R1535.0 in+3.4 in53 mph1,7514.56Open →

Stock turns 2,166 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

5 we have figures for
TrimTireTransmissionAxleAnglesClearanceOpen
4.0 I6, 15-in wheels (SE / Laredo)P225/75R15Aisin AX15 5-speed manual, Aisin AW4 4-speed automatic, 42RE3.55 / 3.7336.5 · 17 · 29.37.7 inUse →
4.0 I6 with 245/70R15 all-terrain option (Up Country)P245/70R15Aisin AX15 5-speed manual, Aisin AW4 4-speed automatic, 42RE3.55 / 3.7336.5 · 17 · 29.37.7 in*Use →
5.2 V8 Quadra-Trac, 15-in wheelsP225/75R1546RH, 44RE 4-speed automatic3.55 / 3.7336.5 · 17 · 29.37.7 in*Use →
Limited / Orvis / TSi, 16-in wheels (4.0 or 5.2)P225/70R1642RE, 46RH, 44RE 4-speed automatic3.55 / 3.7336.5 · 17 · 29.38.3 inUse →
5.9 Limited (1998)P225/70R1646RE 4-speed automatic3.7337 · 17 · 30.38.3 inUse →

* 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
105.9 in
Front overhang
31.9 in
Rear overhang
38.6 in
Height
69 in
Body
SUV
Stock tires
P225/70R16, P225/75R15, P245/70R15

Transmissions and low range

Aisin AX15 5-speed manual (4.0, 1993-94)
3.83 · 2.33 · 1.44 · 1 · 0.79
Aisin AW4 4-speed automatic (4.0, early 1993)
2.8 · 1.53 · 1 · 0.75
42RE (A500SE) 4-speed automatic (4.0, mid-1993-98)
2.74 · 1.54 · 1 · 0.69
46RH (A518) 4-speed automatic (5.2, 1993-95)
2.45 · 1.45 · 1 · 0.69
44RE 4-speed automatic (5.2, 1996-98)
2.74 · 1.54 · 1 · 0.69
46RE 4-speed automatic (5.9, 1998)
2.45 · 1.45 · 1 · 0.69
Low range, np231 command-trac
2.72:1
Low range, np242 selec-trac
2.72:1
Low range, np249 quadra-trac
2.72:1

Axles

Front
Dana 30
Rear
Dana 35 (oval cover) or Dana 44
3.55 ratio
4.0 I6, 15-in wheels (SE / Laredo), 4.0 I6 with 245/70R15 all-terrain option (Up Country), 5.2 V8 Quadra-Trac, 15-in wheels, Limited / Orvis / TSi, 16-in wheels (4.0 or 5.2)
3.73 ratio
4.0 I6, 15-in wheels (SE / Laredo), 4.0 I6 with 245/70R15 all-terrain option (Up Country), 5.2 V8 Quadra-Trac, 15-in wheels, Limited / Orvis / TSi, 16-in wheels (4.0 or 5.2), 5.9 Limited (1998)
Ratios made for it
3.07 · 3.55 · 3.73 · 3.9 · 4.11 · 4.56 · 4.88 · 5.13

Brakes

Front rotor
11.02 in, 280 mm
Front caliper piston
66.0 mm
Rear rotor
11.22 in, 285 mm
Rear
disc (solid, 285 x 11 mm)

Suspension

Front
Quadra-Coil 4-link with track bar, coil springs
Rear
Quadra-Coil 4-link with track bar, coil springs
Rear layout
Factory 4-link

Fuel economy

EPA highway, automatic
18 mpg
EPA highway, manual
20 mpg
Rated years
1993–1998, 4WD

Aftermarket bumpers

3 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.