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WK dimensions and specifications

Exterior dimensions Interior dimensions Capacities & weights
Powertrain Transfer cases Front axles
Rear axles Suspension & chassis Towing data

SRT8 Dimensions and Specifications




Exterior dimensions
DimensionWK1999-2004 WJ
Length
    Wheelbase 109.5"105.9"
    Overall Length 186.7"181.5"
Width
    Track, front / rear 62.0" / 62.0"59.5" / 59.5"
    Body Width 73.3"72.3"
    Maximum Width (at mirrors) 84.2" 
Height, vehicle 67.4"69.4"
Height, load floor 32.1" 
Height, sill step 19.8" 
Drag Coefficient 0.410.45
Aero (Cd x Cross Sectional Area) 12.1 
Ground Clearance (at curb weight)
    Approach Angle 34.1o36.7o
    Ramp breakover Angle 20.6o22.6o
    Departure Angle 27.1o28.6o
Running Ground Clearance
    Front axle 8.5"9.1"
    Rear axle 8.0"9.1"
    Fuel tank 9.5" 
    TC Skidplate  8.7"


Interior dimensions
DimensionWK1999-2004 WJ
Head room, front / rear 39.7" / 39.3"39.7" / 39.5"
Leg room, front / rear 41.7" / 35.5"41.4" / 35.3"
Shoulder room, front / rear 59.1" / 58.5"58.9" / 57.8"
Hip room, front / rear 57.6" / 60.6"56.5" / 52.4"
Knee clearance, rear 1.44"0.60"
Seat travel 10.6" 
SAE volume 50.84 cu. ft. 
Cargo Volume cu. ft. (rear seats up / folded)

Cargo area dimensions

35.0 / 67.4039.0 / 72.3


Capacities and weights
DimensionWK1999-2004 WJ
Fuel Tank - gal. 2006: 20.8
2007: 21.1		 20.5
Base Curb Weight (2WD) - lb.
The nominal weight of the vehicle with standard equipment and a full tank of fuel. It does not include passengers, cargo or optional equipment.
    Laredo 2WD (3.7) 2005-2006: 4254
2007: 4333		 3786 (4.0)
    Laredo 2WD (4.7) 2005-2006: 4368
2007: 4448		 3863
    Limited 2WD (4.7) 2005-2006: 4421
2007: 4481		 3964
Base Curb Weight (4WD) - lb.
The nominal weight of the vehicle with standard equipment and a full tank of fuel. It does not include passengers, cargo or optional equipment.
    Laredo 4WD (3.7) 2005-2006: 4441
2007: 4505		 3970 (4.0)
    Laredo 4WD (4.7) 2005-2006: 4613
2007: 4653		 4041
    Limited 4WD (4.7) 2005-2006: 4665
2007: 4712		 4147
    Limited 4WD (5.7) 2005-2006: 4735
2007: 4719		 ----
Payload Capacity— lb.
The combined maximum allowable weight of cargo, occupants and optional equipment that the vehicle is designed to carry. (Gross Vehicle Weight Rating minus the base curb weight.)
All models except Hemi1100 1000
Hemi1050 ----
Maximum Gross Vehicle Weight Rating (GVWR) - lb.
The maximum allowable total weight of the vehicle, including driver, passengers, any special equipment (options, accessories and upfitted equipment), cargo, fuel, coolant, etc.
    3.7L V6 (2WD/4WD) 5,700 / 5,900 5,400
    4.7L V8 (2WD/4WD) 5,850 / 6,100 5,500
    5.7L V8 (4WD) 6,150 N/A


Powertrain
Engine 3.7L V-6 4.7L V-8 5.7L V-8 6.1L V-8
Net Horsepower (bhp) @ rpm 210 @ 5200 235 @ 4500 330 @ 5000 420 @ 6200
Net Torque lb-ft @ rpm 235 @ 4000 305 @ 3600 375 @ 4000 420 @ 4800
EPA Fuel Economy 16/21 14/20 14/21 12/15

For additional engine specs see WK Engine Specifications

Transmission W5A580 AUTOMATIC, FIVE-SPEED OVERDRIVE
Adaptive electronic control or Electronic Range Select (ERS) driverinteractive 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
Rev - 3.16

Axle: - 3.07, 3.55 optional

Final Drive Ratio: 3.07:1 with 3.7-liter engine

Overall Top Gear: 2.55 with 3.07 axle or 2.95 with 3.55 axle

545RFE, AUTOMATIC MULTI-SPEED
Three planetary gear sets, one overrunning clutch, with Electronic Range Select (ERS) driver interactive control, electronically controlled torque converter clutch.

Gear ratios:
1st  - 3.00
2nd - 1.67 (upshift), 1.50 (kickdown)
3rd - 1.0
4th - 0.75
5th - 0.67
Rev - 3.0

Axle: - 3.73

Final Drive Ratio: 3.73 with 4.7-liter or 5.7-liter engine

Overall Top Gear: 2.50 with 3.73 axle



Transfer cases
NV140

Availability: Included with 3.7-liter engine

Type: Single-speed Operating Mode Full-time 4 x 4

Low-Range Ratio: None

Center Differential Type: Electronically controlled clutch pack torque transfer

Torque Split: Front/Rear: 48/52

NV146

Availability: Included with 6.1-liter engines (SRT8 only)

Type: Active full-time single-speed with variable torque

Operating Modes: Electronic On-Demand 4 x 4

Low Range Ratio: None

Center Differential Type: Electronically controlled clutch pack torque transfer

Torque Split: Variable

NV245

Availability: Included with 4.7-liter and 5.7-liter engines

Type: Two-speed, electronically shifted

Operating Modes: 4x4 Low (Lock), Neutral; Full-Time Active 4x4

Low Range Ratio: 2.72

Center Differential Type: Electronically controlled clutch pack torque transfer

Torque Split: Front/Rear 48/52

Three new full-time four-wheel-drive systems are available on Grand Cherokee:

Quadra-Trac® I utilizes the NV140 single-speed transfer case to provide convenient full-time four-wheel drive with no transfer case lever to shift or driver interaction required. Offering a single-speed transfer case attracts a new group of buyers to the Jeep Grand Cherokee lineup and builds on the capable, entry-level, two-wheel drive versions, which currently account for approximately 25 percent of Jeep vehicle sales.

Quadra-Trac® II incorporates the new NV245 transfer case that provides full-time active four-wheel drive, which anticipates and prevents wheel slip for optimum traction during a wide range of conditions. The NV245 also includes electronic shift with a true low-range gear and neutral for towing Grand Cherokee behind another vehicle.

Quadra-Drive® II takes unparalleled Jeep capability to an even higher plateau using Electronic Limited Slip Differentials (ELSD) to give customers the ultimate in off-road capability. ELSD replace the Vari-Lock progressive axles used on the Quadra-Drive system from previous generation Jeep vehicles for even quicker response to changing conditions and greater torque capacity.



Front axles
Differential Type 1: Conventional (C200F)

Availability: Standard on 4 x 4 models with 3.7-liter and 4.7-liter engines

Ring Gear Diameter: 7.9 in. (200mm)

Axle Ratios: 3.07:1 (3.7-liter); 3.73:1 (4.7-liter)


Differential Type 2: Electronic Limited Slip Differentials (ELSD) (C200FE)

Availability: Optional on 4 x 4 models with NV245 Transfer Case, optional with 5.7-liter engine (Quadra-Drive II)

Ring Gear Diameter: 7.9 in. (200mm)

Axle Ratios: 3.73:1 (4.7-liter and 5.7-liter)



Rear axles
Differential Type 1: Conventional (C213R)

Availability: Standard with 3.7 and 4.7-liter engines

Ring Gear Diameter: 8.3 in. (213mm)

Axle Ratios: 3.07:1 (3.7-liter); 3.73:1 (4.7-liter/5.7-liter)


Differential Type 2: Vari-Lock Progressive

Availability: Optional on 4 x 2 models

Ring Gear Diameter: 8.3 in. (213mm)

Axle Ratios: 3.07:1 (3.7-liter); 3.73:1 (4.7-liter/5.7-liter)


Differential Type 3: Electronic Limited Slip Differentials (ELSD) (C213RE)

Availability: Standard with 5.7-liter engine, Optional with 4.7-liter engine, Optional on 4 x 4 models with NV245 Transfer Case (Quadra-Drive II)

Ring Gear Diameter: 8.3 in. (213mm)

Axle Ratios: 3.73:1


Differential Type 4: Dana 44 (226RBI)

Availability: Standard with 6.1-liter engine (SRT8 only)

Ring Gear Diameter: 8.9" (226mm)

Axle Ratio: 3.73:1



Suspension and chassis
Front Suspension Short/long independent (SLA), coil springs, gas-charged, twin-tube coil over shock absorbers, upper and lower control arms (“A” arms), stabilizer bar.
Rear Suspension Live axle, link coil-with track bar, gas-charged twin tube shock absorbers, stabilizer bar.
Steering Power rack-and-pinion
Overall ratio: 15.8:1 – on center, 13.9:1 at full lock
Steering Turns (lock-to-lock): 2.85
Turning Diameter 36.7 ft. curb-to-curb
Brake System Front — 12.9 x 1.2 (328 x 30) vented disc with 1.89 (48) two-piston pin-slider caliper and ABS. Swept area: 282 sq. in. (1820 sq cm)
Rear — 12.6 x 0.55 (320 x 14) disc with 1.89 (48) single-piston pin-slider caliper and single-channel ABSB. Swept area: 257 sq. in. (1658 sq cm)
Power Assist Type — Single-rate, tandem diaphragm vacuum


Towing data

See also Grand Cherokee trailer towing

2005-up Grand Cherokee towing specifications
Engine Transmission Maximum gross trailer weight (GTW)
3.7L V-6 W5A580 5-speed 3500
4.7L V8 545RFE 5-speed 6500
5.7L V8 545RFE 5-speed 7200
6.1L V8 W5A580 5-speed 3500
Gross Vehicle Weight Rating (GVWR)
3.7-Liter (2WD / 4WD) 5700 / 5900
4.7-Liter (2WD / 4WD) 5850 / 6100
5.7-Liter 6150
6.1-Liter 5650
Maximum Gross Combined Weight Rating (GCWR)
3.7-Liter (2WD / 4WD) 8,000 / 8,200 (Class II)
4.7-Liter (2WD / 4WD) 11,200 / 11,450 (Class IV)
5.7-Liter (4WD) 12,200 (Class IV)
6.1-Liter 8,800 (Class II)
Tongue Load Limit
(Note: The towing vehicle payload should be reduced by the tongue load (for a dead weight hitch) to keep the rear axle loading below GAWR (Gross Axle Weight Rating) of 3,200 Lbs.)
3.7-Liter 525 (Class II)
4.7-Liter 720 (Class IV)
5.7-Liter 720 (Class IV)
6.1-Liter 350 (Class II)
Maximum trailer length
Class II 20 ft
Class III 25 ft
IV 30 ft
Frontal area limitation
Class II 40 sq ft
Class III 60 sq ft
IV 60 sq ft



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