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Dimensions and capacities are in inches unless otherwise specified.
| Powertrain
/ Chassis |
Vortec
4200 4.2L I-6 (LL8) |
Vortec
5300 5.3L V-8 (LM4) |
| Application |
standard on TrailBlazer and TrailBlazer
EXT |
optional on TrailBlazer EXT |
| Type |
4.2L inline six cylinder |
5.3L V-8 |
| Displacement (cu in / cc) |
256 / 4195 |
325 / 5328 |
| Bore & stroke (in / mm) |
3.66 x 4.01 / 93 x 102 |
3.78 x 3.27 / 96 x 92 |
| Block material |
cast aluminum |
cast aluminum |
| Cylinder head material |
cast aluminum |
cast aluminum |
| Valvetrain |
dual overhead camshafts, variable cam
phasing - exhaust cams, 4 valves per cylinder |
overhead valves, camshaft in block, 2
valves per cylinder |
| Ignition system |
coil-on-plug, platinum-tipped spark plugs |
coil near plug |
| Fuel delivery |
sequential fuel injection |
sequential fuel injection |
| Compression ratio |
10.1:1 |
9.5:1 |
| Horsepower (hp / kw @ rpm) |
275 / 205 @ 6000 |
290 / 216 @ 5200 |
| Torque (lb-ft / Nm @ rpm) |
275 / 373 @ 3600 |
325 / 441 @ 4000 |
| Recommended fuel |
unleaded regular |
unleaded regular |
| Maximum engine speed (rpm) |
6300 |
5900 |
| Emissions controls |
catalytic converter; NLEV |
evaporative system, catalytic
converter, exhaust gas recirculation, positive crankcase ventilation;
NLEV |
Estimated fuel economy
(mpg city / hwy / combined ) |
2WD: 16 / 22 / 19 |
2WD: 15 / 19 / 17 |
| 4WD: 15 / 21 / 18 |
| EXT 2WD: 15 / 20 / 17 |
4WD: 14 / 18 / 16 |
| EXT 4WD: 15 /20 / 17 |
| Transmission |
Hydra-Matic
4L60-E |
| Type |
4-speed automatic transmission, rear-wheel
drive, electronically controlled automatic overdrive with torque converter
clutch |
| Gear ratios (:1) |
|
| 1st |
3.059 |
| 2nd |
1.625 |
| 3rd |
1.000 |
| 4th |
0.696 |
| Reverse |
2.294 |
| Final drive ratio |
3.42:1; 3.73:1 and 4.10:1* are optional
(*not optional on V-8) |
| Chassis
/ Suspension |
2008 Chevy TrailBlazer |
| Front |
independent, double A-arm, 46-mm shocks,
34-mm stabilizer |
| Rear |
5-link solid axle, 36-mm
shocks, 34-mm stabilizer bar on 2WD, 24-mm stabilizer bar on 4WD |
| Transfer case system |
Autotrac (standard on 4WD) |
| Steering type |
rack-and-pinion (hydraulically
assisted) |
| Steering ratio |
TrailBlazer
|
20.4:1 |
|
TrailBlazer EXT
|
18.5:1 |
| Steering wheel turns, lock-to-lock |
TrailBlazer
|
3.82 |
|
TrailBlazer EXT
|
3.48 |
| Turning circle, curb-to-curb (ft / m) |
TrailBlazer
|
36.4 / 11 |
|
TrailBlazer EXT
|
39.6 / 12 |
| Brakes |
TrailBlazer |
TrailBlazer
EXT |
| Type |
4-wheel vented disc with front aluminum
dual piston calipers, standard |
4-wheel ABS; drum-in-hat parking brake
4-wheel vented disc with front aluminum dual piston calipers, standard
4-wheel ABS; drum-in-hat parking brake |
| Rotor diameter x thickness
(in / mm) |
front |
12 x 1.14 / 305 x 29 |
12.8 x 1.14 / 325 x
29 |
| rear |
12.8 x 0.78 / 325 x
20 |
12.8 x 0.78 / 325 x
20 |
Total swept area
(sq in / sq cm) |
front |
210 / 1353 |
228 / 1469 |
| rear |
217 / 1397 |
217 / 1397 |
| Wheels and Tires |
TrailBlazer |
TrailBlazer
EXT |
| Wheel size and type |
Standard
|
16-inch cast aluminum |
17-inch bright aluminum |
|
Optional
|
17-inch bright aluminum |
- |
|
North Face
|
17-inch sport aluminum |
17-inch sport aluminum |
| Tires |
Standard
|
P245/70R16 |
P245/65R17 |
|
Optional
|
P245/65R17 |
- |
|
North Face
|
P245/65R17 |
P245/65R17 |
| Exterior
Dimensions |
TrailBlazer |
TrailBlazer
EXT |
| Wheelbase (in / mm) |
113 / 2870 |
129 / 3277 |
| Overall length (in / mm) |
191.8 / 4872 |
207.8 / 5279 |
| Overall width (in / mm) |
74.6 / 1895 |
74.7 / 1897 |
| Overall height, with side rails (in / mm) |
74.5 / 1892 |
77.1 / 1957 |
| Track (in / mm) |
front |
63.1 / 1603 |
63.1 / 1603 |
| rear |
62.1 / 1576 |
62.1 / 1576 |
| Minimum ground clearance (in / mm) |
8 / 203 |
8 / 203 |
| Ground to top of load floor (in / mm) |
32.1 / 817 |
31.9 / 810 |
| Step-in height, 2WD (in / mm) |
19.7 / 500 |
18.9 / 480 |
| Approach angle |
2WD |
29º |
34.6º |
| 4WD |
34.1º |
| Departure angle |
2WD |
23º |
23.1º |
| 4WD |
23.6º |
| Curb weight (lb / kg) |
2WD w/Vortec 4200 |
4425 / 2007 |
4773 / 2165 |
| 4WD w/Vortec 4200 |
4612 / 2092 |
4954 / 2247 |
| 2WD w/Vortec 5300 |
- |
4822 / 2187 |
| 4WD w/Vortec 5300 |
- |
5077 / 2303 |
Weight distribution
(% front / rear) |
2WD w/Vortec 4200 |
53 / 47 |
52 / 48 |
| 4WD w/Vortec 4200 |
54 / 46 |
53 / 47 |
| 2WD w/Vortec 5300 |
- |
52 / 48 |
| 4WD w/Vortec 5300 |
- |
53 / 47 |
| Interior
Dimensions |
TrailBlazer |
TrailBlazer
EXT |
| Seating capacity |
First Row |
2 |
2 |
| Second Row |
3 |
3 |
| Third Row |
- |
2 |
| Total |
5 |
7 |
| Head room (in / mm) |
First Row |
40.2 / 1021 |
40.2 / 1021 |
| Second Row |
39.6 / 1006 |
39.6 / 1006 |
| Third Row |
- |
38.5 / 978 |
| Leg room (in / mm) |
First Row |
42.9 / 1090 |
42.9 / 1090 |
| Second Row |
37 / 940 |
37 / 940 |
| Third Row |
- |
31.2 / 792 |
Shoulder room
(in / mm) |
First Row |
58.5 / 1486 |
58.5 / 1486 |
| Second Row |
58.5 / 1486 |
58.5 / 1486 |
| Third Row |
- |
58.3 / 1481 |
| Hip room (in / mm) |
First Row |
56 / 1422 |
56 / 1422 |
| Second Row |
58.2 / 1478 |
58.1 / 1476 |
| Third Row |
- |
45.9 / 1167 |
| Cargo length floor (in / mm) |
70 / 1778 |
85.5 / 2180 |
Cargo volume
(cu ft / L) |
3rd row seat up |
- |
23.4 / 663 |
| 2nd row seat up |
43.7 / 1237 |
66.5 / 1883 |
| behind 1st row seat |
80.1 / 2268 |
107 / 3030 |
| Capacities |
TrailBlazer |
TrailBlazer
EXT (Vortec 4200) |
TrailBlazer
EXT (Vortec 5300) |
| GVWR, standard (lb / kg) |
2WD |
5550 / 2494 |
6200 / 2812 |
6200 / 2812 |
| 4WD |
5750 / 2608 |
6400 / 2903 |
6400 / 2903 |
| Payload, maximum (lb / kg) |
2WD |
1125 / 510 |
1147 / 520 |
1378 / 625 |
| 4WD |
1138 / 516 |
1446 / 656 |
1393 / 632 |
Trailer towing maximum
(lb / kg) |
2WD |
6300 / 2858 |
6000 / 2721 |
7100 / 3220 |
| 4WD |
6100 / 2766 |
5800 / 2630 |
6700 / 3039 |
| Maximum tongue weight (lb / kg) |
400 / 181
(without sway control) |
400 / 181
(without sway control) |
400 / 181
(without sway control) |
| Fuel tank (gal / L) |
22 / 83.3 |
25 / 94.6 |
25 / 94.6 |
| Engine oil (qt / L) |
7 / 6.6 |
7 / 6.6 |
6 / 5.7 |
| Cooling system (qt / L) |
13.9 / 13.1 |
15.2 / 14.3 |
17.9 / 16.9 |
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either expressed or implied with respect to the data presented here. All
specifications, prices and equipment are subject to change without notice.
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