PRELIMINARY SPECIFICATIONS

GENERAL INFORMATION

Body Style Four-door sport-utility vehicle

Construction Steel Uniframe ®

Assembly Plant Jefferson Avenue North, Detroit, USA, and

Magna Steyr Assembly Plant in Graz, Austria

EPA Vehicle Class Multi-purpose vehicle

Introduction date Fall 2005 as 2006 model

ENGINE: 6.1-LITER, HEMI ® V-8

Availability ________________________________ Std. – Grand Cherokee SRT-8

Type and Description _______________________ 90-degree V-type, liquid-cooled

Displacement _____________________________ 370 cu. in. (6059 cu. cm)

Bore x Stroke _____________________________ 4.06 x 3.58 (103.0 x 90.9)

Valve System _____________________________ Pushrod-operated overhead valves, 16 valves, eight conventional hydraulic lifters, all with roller followers

Fuel Injection _____________________________ Sequential, multi-port, electronic, returnless

Construction ________________ Deep-skirt cast-iron block with cross-bolted main bearing caps, aluminum alloy heads with hemispherical combustion chambers

Compression Ratio _________________________ 10.3:1

Power (estimated SAE net) __________________ 415 bhp (318 kW) @ 6200 rpm, (68 bhp/L)

Torque (estimated SAE net) __________________ 410 lb.-ft. (569 N•m) @ 4800 rpm

Max. Engine Speed _________________________ 6400 rpm (electronically limited)

Fuel Requirement __________________________ Premium 91 octane (R+M)/2—recommended,

Oil Capacity _______________________________ 7 qt. (6.6L)

Coolant Capacity ___________________________ 14 qt. (13.25L)

Emission Controls _____________________ Dual close-coupled three-way catalytic converters, quad heated oxygen sensors and internal engine features

Max. Gross Trailer Weight ____________________ 3,500 lbs.

EPA Fuel Economy (mpg City/Hwy) ____________ N/A

TRANSMISSION: W5A580 FIVE-SPEED AUTOMATIC

Availability _____________________ Std. – Grand Cherokee SRT-8

Description _______ Adaptive electronic control, Performance tuned AutoStick ® driver-interactive manual control and electronically modulated torque converter clutch

Gear Ratios

__ 1st ____________________________ 3.59

__ 2nd ____________________________ 2.19

__ 3rd _____________________________ 1.41

__ 4th _____________________________ 1.00

__ 5th _____________________________ 0.83

__ Reverse _________________________ 3.14

Final Drive Ratio _____________________ 3.73

Overall Top Gear _____________________ 3.10

ELECTRICAL SYSTEM

Alternator ___________________________ 160-amp

Battery _____________________________ H7 Case, 730 CCA, maintenance-free

TRANSFER CASE: MD146 SRT

Availability Standard

Type Single-speed

Operating Mode Electronic On-Demand 4 x 4

Low-Range Ratio None

Center Differential Type Electronically controlled clutch pack
torque transfer

Torque Split, Front/Rear Variable

FRONT AXLES

Differential Type Conventional

Availability Standard

Ring Gear Diameter 7.9 in. (200mm)

Axle Ratios 3.73:1

REAR AXLES

Differential Type Conventional

Availability Standard

Ring Gear Diameter 8.9 in. (226 mm)

Axle Ratios 3.73:1

DIMENSIONS AND CAPACITIES

Wheelbase 109.5 (2781)

Track, Front 63.3 (1608)

Track, Rear 62.1 (1577)

Overall Length 195.1 (4953.3)

Overall Width (width at mirrors) 84.3 (2138.7)

Body Width 73.3 (1861.8)

Overall Height 66.7 (1694.2)

Load Floor Height 31.1 (789.9)

Sill Step Height 20.1 (511.5)

Ground Clearance

Chassis (fuel tank) 8.5 (215.9)

Front axle 7.5 (190.5)

Rear axle 7.0 (177.8)

Approach Angle 15.8°

Departure Angle 19.7 °

Ramp Breakover Angle 9.7°

Curb Weight (estimated) 4788 lbs. (2171 kg) with 6.1-L engine

Weight Distribution, F/R 55/45

Payload
(includes occupants and cargo) 1050lbs (476 kg)

Frontal Area 30.3 sq. ft. (2.82 sq. m)

Drag Coefficient 0.39

Aero 11.7 (Cd x Cross Sectional Area)

Fuel Tank Capacity 20.5 gal. (77.6-liter)

ACCOMMODATIONS

Seating Capacity, Front/Second 2/3

Front Seat

Head room 39.7 (1008)

Leg room 41.7 (1058)

Shoulder room 59.1 (1502)

Hip room 57.6 (1451)

Seat travel 10.6 (270)

SAE volume 58.02 cu. ft. (1.6 cu. m)

Rear Seat

Head room 39.3 (999)

Leg room 35.5 (901)

Shoulder room 58.5 (1584)

Hip room 45.8 (1163.7)

Knee clearance 1.44 (36.6)

Couple 33.0 (838.2)

SAE volume 50.84 cu. ft. (1.4 cu. m)

Cargo Volume

Behind rear seat 34.5 cu. ft. (1.14 cu. m)

Behind front-row seats
with rear seats folded 67.4 cu. ft. (2.00 cu. m)

BODY

Layout Longitudinal front engine, transfer case with

Electronic On-Demand four-wheel drive

Construction Steel Uniframe

SUSPENSION

Front Short/long independent (SLA), coil springs,

gas-charged, monotube coil over shock absorbers, upper and lower control arms (“A” arms), stabilizer bar

Rear Live axle, link coil with track bar, gas-

charged monotube shock absorbers, stabilizer bar

STEERING

Type Power rack-and-pinion

Overall Ratio 16.5:1 – on center, 14.6:1 – at full lock

Turning Diameter (curb-to-curb) (a) 37.1 ft. (11.3 m)

Steering Turns (lock-to-lock) 2.85

(a)Turning diameter is measured at the outside of the tires at curb height. Turning diameters and steering wheel turns, lock-to-lock may differ with optional tires and wheels.

BRAKES

Front

Size and type 14.2 x 1.3 (360 x 32) vented disc with 1.7 (44) Four-piston Brembo Caliper and ABS

Swept area 351 sq. in. (2261 sq. cm)

Rear

Size and type 13.8 x 1.1 (350 x 28) disc with 1.1/1.3 (28/32)

Four-piston fixed and Brembo caliper and four-channel ABS

Swept area 316 sq. in. (2036 sq. cm)

Power Assist Type Single-rate, tandem diaphragm vacuum

TIRES (a)

Front - Standard

Size and type 255/45/ZR20

Mfr. and model Goodyear Eagle RS-A All-Season, Run Flat

Revs per mile 721

Rear - Standard

Size and type 285/40/ZR20

Mfr. and model Goodyear Eagle RS-A All-Season, Run Flat

Revs per mile 721

WHEELS

Front - Standard

Type and Material Forged / Machined - aluminum wheels

Size 20” x 9”

Rear - Standard

Type and Material Forged / Machined - aluminum wheels

Size 20” x 10”