PRELIMINARY
The information shown is preliminary and based on data available at the time of publication. All dimensions are in inches (millimeters) unless otherwise noted. All dimensions are measured at curb weight with standard tires and wheels.
GENERAL INFORMATION
Body Style ……………………………………………………………………………….Four-door sport-utility vehicle
Construction ……………………………………………………………………………………………..Steel Uniframe®
Assembly Plant ………………………………………………………………Jefferson Avenue North, Detroit, USA
EPA Vehicle Class …………………………………………………………………………………Multi-purpose vehicle
2006 MY Introduction …………………………………………………………………………………………..Fall 2005
ENGINE: 3.7-LITER SOHC POWER TECH® V-6
Availability ………………………………………………………………….Standard with 4×2 and 4×4 Commander
Type and Description ……………………………………….90-degree V-type, liquid-cooled with balance shaft
Displacement ………………………………………………………………………………….226 cu. in. (3701 cu. cm)
Bore x Stroke …………………………………………………………………………………..3.66 x 3.57 (93.0 x 90.8)
Valve System ………………………….Chain-driven SOHC, 12 valves and hydraulic end-pivot roller rockers
Fuel Injection …………………………………………………………..Sequential, multi-port, electronic, returnless
Construction ………………………………Cast-iron block and bedplate, aluminum alloy heads, balance shaft
Compression Ratio ………………………………………………………………………………………………………………………9.7:1
Power (estimated SAE net) ………………………………………….210 hp (157 kW) @ 5200 rpm (58.1 hp/L)
Torque (estimated SAE net) …………………………………………………..235 lb.-ft. (319 N•m) @ 4000 rpm
Max. Engine Speed …………………………………………………………………5800 rpm (electronically limited)
Fuel Requirement ……………………………………………………………Unleaded regular, 87 octane (R + M)/2
Oil Capacity ………………………………………………………………………………………………5.0 qt. (4.7-liter)
Coolant Capacity …………………………………………………………………………………….14.0 qt. (13.25-liter)
Emission Controls …Dual 3-way catalytic converters, heated oxygen sensors & internal engine features(a)
Maximum Gross Trailer Weight (lbs.)
2WD …………………………………………………………………………………………………………………3500 lbs.
4WD …………………………………………………………………………………………………………………3500 lbs.
Estimated EPA Fuel Economy
mpg (City/Hwy) ……………………………………………………………………………………………………….16/19
(a) Meets LEV II evaporative emission requirements in CA, NY, MA, ME and VT. Meets Tier 2, Bin 5 emission requirements and Clean Fuel Fleet Certification (CCF-LEV) in all other states..
ENGINE: 4.7-LITER SOHC POWER TECH V-8
Availability ………………………Standard with 4×2 and 4×4 Commander Limited, optional on Commander
Type and Description ………………………………………………………………90-degree V-type, liquid-cooled
Displacement ………………………………………………………………………………….287 cu. in. (4701 cu. cm)
Bore x Stroke …………………………………………………………………………………..3.66 x 3.41 (93.0 x 86.5)
Valve System ………………………………………………………………………….Chain-driven SOHC, 16 valves, hydraulic end-pivot roller rockers
Fuel Injection …………………………………………………………..Sequential, multi-port, electronic, returnless
Construction …………………………………………………Cast-iron block and bedplate, Aluminum alloy heads
Compression Ratio …………………………………………………………………………………………………………………….9.0:1
Power (estimated SAE net) …………………………………………235 hp (175 kW) @ 4500 rpm (50.0 hp/L)
Torque (estimated SAE net) …………………………………………………..305 lb.-ft. (414 N•m) @ 3600 rpm
Max. Engine Speed ……………………………………………………………….6000 rpm (electronically limited)
Fuel Requirement ……………………………………………………………Unleaded regular, 87 octane (R+M)/2
Oil Capacity …………………………………………………………………………………………….6 qt. (5.7-liter)
Coolant Capacity …………………………………………………………………………………….14.0 qt. (13.25-liter)
Emission Controls ….Dual 3-way catalytic converters, heated oxygen sensors, internal engine features(a)
Maximum Gross Trailer Weight (lbs.)
2WD …………………………………………………………………………………………………………………6500 lbs.
4WD …………………………………………………………………………………………………………………6500 lbs.
Estimated EPA Fuel Economy
(mpg City/Hwy) ……………………………………………………………………………………………………….14/19
(a) 4×2 meets LEV II evaporative emission requirements in CA, NY, MA, ME and VT. 4×2 meets Tier 2 Bin 9A emissions requirements and Clean Fuel Fleet Certification (CCF-LEV) in all other states. 4×4 meets LEV II evaporative emission requirements in CA, NY, MA, ME and VT. 4×4 meets Tier I evaporative emissions in all other states and Clean Fuel Fleet Certification (CCF-LEV). Meets Euro IV in international markets.
ENGINE: 5.7-LITER HEMI® V-8
Availability ……………………………………………………………………Optional with 4×4 Commander Limited
Type and Description ………………………………………………………………..90-degree V-type, liquid-cooled
Displacement ………………………………………………………………………………….345 cu. in. (5654 cu. cm)
Bore x Stroke …………………………………………………………………………………..3.92 x 3.58 (99.5 x 90.9)
Valve System ….Pushrod-operated overhead valves, 16 valves, eight deactivating and 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 ……………………………………………………………………………………………………………………..9.6:1
Power (estimated SAE net) ………………………………………..330 hp (246 kW) @ 5000 rpm, (57.5 hp/L)
Torque (estimated SAE net) …………………………………………………..375 lb.-ft. (509 N•m) @ 4000 rpm
Max. Engine Speed ………………………………………………………………….5800 rpm (electronically limited)
Fuel Requirement …Unleaded mid-grade, 89 octane (R+M)/2 recommended, unleaded regular, 87 octane (R+M)/2 acceptable
Oil Capacity …………………………………………………………………………………………………7 qt. (6.6-liter)
Coolant Capacity …………………………………………………………………………………….14.5 qt. (13.72-liter)
Emission Controls ……Dual close-coupled three-way catalytic converters, Quad heated oxygen sensors and internal engine features(a)
Maximum Gross Trailer Weight (lbs.)
4WD ………………………………………………………………………………………………………………….7200 lbs.
Estimated EPA Fuel Economy
mpg City/Hwy) …………………………………………………………………………………………………………13/18
(a) Meets LEV II evaporative emission requirements in CA, NY, MA, ME and VT and Tier I evaporative emissions and Clean Fuel Fleet Certification (CCF-LEV) in all other states. Meets Euro IV in international markets.
TRANSMISSION: W5A580 AUTOMATIC, FIVE-SPEED OVERDRIVE
Availability …………………………………………………………………………Included with 3.7-L V-6 gas engine
Description ….Adaptive electronic control or Electronic Range Select (ERS) 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 …………………………………………………………………………………………………………………….3.16
Final Drive Ratio ……………………………………………………………………………….3.07:1 with 3.7-L engine
Overall Top Gear ………………………………………………………..2.55 with 3.07 axle or 2.95 with 3.55 axle
TRANSMISSION: 545RFE, AUTOMATIC MULTI-SPEED
Availability …………………………………………………………………….Included with 4.7-L and 5.7-L engines
Description ……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 kick-down
3rd …………………………………………………………………………………………………………………………..1.00
4th …………………………………………………………………………………………………………………………..0.75
5th …………………………………………………………………………………………………………………………..0.67
Reverse ……………………………………………………………………………………………………………………3.00
Final Drive Ratio …………………………………………………………………….3.73 with 4.7-L or 5.7-L engine
Overall Top Gear …………………………………………………………………………………….2.50 with 3.73 axle
TRANSFER CASE: NV140
Availability ……………………………………………………………………………………Standard with 3.7-L engine
Type ……………………………………………………………………………………………………………..Single-speed
Operating Mode ………………………………………………………………………………………………….Full-time 4×4
Low-Range Ratio ……………………………………………………………………………………………………………..None
Center Differential Type ………………………………….Electronically controlled clutch pack torque transfer
Torque Split, Front/Rear ……………………………………………………………………………………………….48/52
TRANSFER CASE: NV245
Availability ……………………………………………………………………Included with 4.7-L and 5.7-L engines, optional with 3.7-L engine
Type ……………………………………………………………………………………Two-speed, electronically shifted
Operating Modes ………………………………………………..4×4 Low (Lock), Neutral; Full-Time Active 4×4
Low Range Ratio …………………………………………………………………………………………………………..2.72
Center Differential Type ………………………………Electronically controlled clutch pack torque transfer
Torque Split, Front/Rear ……………………………………………………………………………………………….48/52
FRONT AXLES
Differential Type ……………………………………………………………………………………………….Conventional
Availability ………………………………………………Standard on 4×4 models with 3.7-L and 4.7-L engines
Ring Gear Diameter ………………………………………………………………………………………7.9 in. (200mm)
Axle Ratios …………………………………………………………….3.07:1 – 3.7-L engine; 3.73:1 – 4.7-L engine
Differential Type ………………………………………………………Electronic Limited Slip Differentials (ELSD)
Availability …………………………………………………Optional on 4.7-L models with NV245 transfer case,
standard with 4×4 5.7-L engine (Quadra-Drive II®)
Ring Gear Diameter …………………………………………………………………………………..Same as standard
Axle Ratios ……………………………………………………………………………..3.73:1 – 4.7-L and 5.7-L engine
REAR AXLES
Differential Type ……………………………………………………………………………………………….Conventional
Availability …………………………………………………Standard on 3.7-L engine; standard on 4.7-L engine
Ring Gear Diameter ……………………………………………………………………………………..8.3 in. (213 mm)
Axle Ratios …………………………………………………3.07:1 – 3.7-L V-6 engine; 3.73:1 – 4.7-L V-8 engine;
3.55:1 included with 3.7-L/4WD/245 Transfer Case
Differential Type …………………………………………………………………………………..Vari-Lock Progressive
Availability ………………………………………………………………………………………..Optional on 4×2 models
Ring Gear Diameter …………………………………………………………………………………..Same as standard
Axle Ratios ……………………………………3.07:1 – 3.7-L engine; 3.73:1 – 4.7-L engine and 5.7-L engine
Differential Type ………………………………………………………Electronic Limited Slip Differentials (ELSD)
Availability ……………….Standard with 5.7-L engine; optional with 4×4 4.7-L engine (Quadra-Drive II)
Ring Gear Diameter ……………………………………………………………………………..Same as conventional
Axle Ratios …………………………………………………………………..3.73:1 – 4.7-L engine and 5.7-L engine
ELECTRICAL SYSTEM
Alternator ………………………………………………………………………………………………………………160-amp
Battery …………………………………………………………………………..Group 65 maintenance-free 750CCA
DIMENSIONS AND CAPACITIES
Wheelbase ……………………………………………………………………………………………………….109.5 (2781)
Track, Front ………………………………………………………………………………………………………..62.6 (1589)
Track, Rear ………………………………………………………………………………………………………..62.6 (1589)
Overall Length ………………………………………………………………………………………………….188.5 (4787)
Overall Width (width at mirrors) ………………………………………………………………………….89.0 (2260.9)
Body Width ……………………………………………………………………………………………………..74.8 (1899.5)
Overall Height ………………………………………………………………………………………………….71.9 (1825.7)
Load Floor Height ………………………………………………………………………………………………36.2 (920.3)
Sill Step Height ………………………………………………………………………………………………….19.9 (504.9)
Ground Clearance
Chassis (fuel tank) …………………………………………………………………………………………….9.9 (250.6)
Front axle ………………………………………………………………………………………………………..9.0 (227.4)
Rear axle …………………………………………………………………………………………………………8.6 (217.9)
Approach Angle …………………………………………………………………………………………………………….34°
Ramp Breakover Angle …………………………………………………………………………………………………..20°
Departure Angle ……………………………………………………………………………………………………………27°
Curb Weight (estimated)
2WD ………………………………………………………Commander: 4581 lbs. (2077 kg) with 3.7-L engine
Commander: 4709 lbs. (2136 kg) with 4.7-L engine
Limited: 4930 lbs. (2236 kg) with 4.7-L engine
4WD ………………………………………………………Commander: 4783 lbs. (2170 kg) with 3.7-L engine
Commander: 4951 lbs. (2246 kg) with 4.7-L engine
Limited: 5047 lbs. (2289 kg) with 4.7-L engine
Limited: 5169 lbs. (2345 kg) with 5.7-L engine
Weight Distribution, F/R
2WD ………………………………………………………………………….Commander: 43/57 with 3.7-L engine
Commander: 44/56 with 4.7-L engine
Limited: 45/55 with 4.7-L engine
4WD ………………………………………………………………………….Commander: 44/56 with 3.7-L engine
Commander: 44/56 with 4.7-L engine
Limited: 44/56 with 4.7-L engine
Limited: 45/55 with 5.7-L engine
Payload (includes occupants and cargo)
2WD …………………………………………………………………………………..3.7-L engine 1620 lbs (735 kg)
4.7-L engine 1490 lbs (676 kg)
4WD …………………………………………………………………………………..3.7-L engine 1620 lbs (735 kg)
4.7-L engine 1450 lbs (658 kg)
5.7-L engine 1230 lbs (558 kg)
Frontal Area ………………………………………………………………………………………..32.1 sq. ft. (3.0 sq. m)
Drag Coefficient ………………………………………………………………………………………………………….0.415
Aero ……………………………………………………………………………………13.3 (Cd x Cross Sectional Area)
Fuel Tank Capacity ………………………………………………………………………………… 20.5 gal. (77.6-liter)
ACCOMMODATIONS
Seating Capacity, Front/Second/Third …………………………………………………………………………….2/3/2
Front Seat
Head room ……………………………………………………………………………………………………..42.1 (1070)
Leg room ………………………………………………………………………………………………………..41.7 (1058)
Shoulder room …………………………………………………………………………………………………59.0 (1499)
Hip room …………………………………………………………………………………………………………55.6 (1412)
Seat travel – driver ……………………………………………………………………………………………..10.5 (267)
Seat travel – passenger ………………………………………………………………………………………..9.8 (250)
SAE volume ……………………………………………………………………………………68.5 cu. ft. (1.94 cu. m)
2nd Row Seat
Head room ……………………………………………………………………………………………………. 40.2 (1021)
Leg room ………………………………………………………………………………………………………… 36.1 (916)
Shoulder room ……………………………………………………………………………………………….. 58.5 (1486)
Hip room ……………………………………………………………………………………………………….. 54.0 (1372)
Knee clearance ………………………………………………………………………………………………… 1.8 (45.7)
Couple …………………………………………………………………………………………………………. 33.0 (838.4)
SAE volume ………………………………………………………………………………….. 36.3 cu. ft. (1.03 cu. m)
3rd Row Seat
Head room …………………………………………………………………………………………………… 35.7 (907.6)
Leg room ……………………………………………………………………………………………………… 28.9 (734.0)
Shoulder room …………………………………………………………………………………………….. 50.4 (1280.8)
Hip room (w/without rear HVAC) …………………………………………………………………….. 57.4 (1458.5)
Couple …………………………………………………………………………………………………………. 33.0 (838.2)
SAE Volume ……………………………………………………………………………………. 8.0 cu. ft. (0.23 cu. m)
Cargo Volume
Behind 3rd Row Seat …………………………………………………………………………6.0 cu. ft. (0.17 cu. m)
Behind 2nd row seats ………………………………………….with 3rd seat folded 36.4 cu. ft. (1.03 cu. m)
Behind front row with 2nd and 3rd seat folded …………………………………….68.7 cu. ft. (1.95 cu. m)
BODY
4×2
Layout …………………………………………………………………………Longitudinal front engine, rear drive
Construction ……………………………………………………………………………………………….Steel Uniframe
4×4
Layout …………………………..Longitudinal front engine, transfer case with full-time four-wheel drive
Construction ……………………………………………………………………………………………….Steel Uniframe
SUSPENSION
Front ………………………………………………………………………………………Short/long independent (SLA),
coil springs, gas-charged, twin-tube coil over shock absorbers,
upper and lower control arms (“A” arms), stabilizer bar
Rear ……….Live axle, link coil with track bar, gas-charged twin tube shock absorbers, stabilizer bar
STEERING
Type ………………………………………………………………………………………………….Power rack-and-pinion
Overall Ratio ……………………………………………………………………17:4:1 on center, 15:45:1 at full lock
Turning Diameter (curb-to-curb)(a) ……………………………………………………………………36.8 ft (11.2 m)
Steering Turns (lock-to-lock) …………………………………………………………………………………………..3.14
(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 ……………………………………………………..12.9 x 1.2 (328 x 30) vented disc with 1.89
(48) two-piston pin-slider caliper and ESP standard
Swept area ………………………………………………………………………………….272 sq. in. (1820 sq. cm)
Rear
Size and type ………………………………………………………..12.6 x 0.55 (320 x 14) disc with 1.89 (48) single-piston pin-slider caliper and ESP standard
Swept area ……………………………………………………………………………………..256 sq. in. (1658 sq. cm)
Power Assist Type ……………………………………………………….Single-rate, tandem diaphragm vacuum
TIRES(a)
Standard – Commander
Size and type …………………………………………………………………………………………………P245/65R17
Mfr. and model …………………………………………………..Goodyear Fortera black sidewall all-season
Revs per mile …………………………………………………………………………………………………………….721
Standard – Limited/Optional – Commander
Size and type …………………………………………………………………………………………………P245/65R17
Mfr. and model ……………………………………………..Goodyear Fortera outline white letter all-season
Revs per mile …………………………………………………………………………………………………………….710
(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.
WHEELS
Standard – Commander
Type and Material …………………………………………………………………………….Cast-aluminum wheels
Size …………………………………………………………………………………………………………………17” x 7.5”
Standard – Limited
Type and Material …………………………………………………………………………….Cast-aluminum wheels
Size …………………………………………………………………………………………………………………17” x 7.5”
Optional – Limited
Type and Material …………………………………………………………………Chrome-clad aluminum wheels