Chevrolet TrailBlazer
2002–09
Factory gearing, tires, angles and brakes for the TrailBlazer, 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.
Tire upgrades, worked out
LS/LT 4x4 4.2 I6, 3.42s, from P245/70R16| Tire | Height | Under the diffs | Speedo at 65 | RPM at 65 | Gears for daily | Open |
|---|---|---|---|---|---|---|
| 265/75R16 | 31.6 in | +1.1 in | 61 mph | 1,653 | 3.73 | Open → |
| 285/75R16 | 32.8 in | +1.7 in | 58 mph | 1,593 | 3.73 | Open → |
| 33x10.50R16 | 33.0 in | +1.7 in | 58 mph | 1,585 | 3.91 | Open → |
| 255/85R16 | 33.1 in | +1.8 in | 58 mph | 1,582 | 3.91 | Open → |
| 315/75R16 | 34.6 in | +2.5 in | 55 mph | 1,512 | 4.1 | Open → |
| 35x12.50R16 | 35.0 in | +2.7 in | 55 mph | 1,494 | 4.1 | Open → |
Stock turns 1,773 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.
Size
- Wheelbase
- 113 in
- Front overhang
- 35.4 in
- Rear overhang
- 43.3 in
- Height
- 72 in
- Body
- SUV
- Stock tires
- P245/65R17, P245/70R16
Transmissions and low range
- 4-speed automatic (4L60-E)
- 3.06 · 1.63 · 1 · 0.7
- Low range, nvg226
- 2.72:1
Axles
- Front
- GM IFS front (size unconfirmed)
- Rear
- GM 8.6 in (unconfirmed)
- 3.42 ratio
- LS/LT 4x4 4.2 I6, LTZ 4x4 (17-inch on/off-road)
- 3.73 ratio
- LS/LT 4x4 4.2 I6, LTZ 4x4 (17-inch on/off-road)
- 4.1 ratio
- LS/LT 4x4 4.2 I6, LTZ 4x4 (17-inch on/off-road)
Brakes
- Front rotor
- 12.01 in, 305 mm
- Front caliper piston
- 45.0 mm
- Rear rotor
- 12.80 in, 325 mm
- Rear
- disc (vented, 325 x 20 mm)
Suspension
- Front
- double wishbone IFS, coil springs
- Rear
- 5-link (4 links plus track bar), coil springs; auto-leveling rear air optional
- Rear layout
- Factory 4-link
Fuel economy
- EPA highway
- 19 mpg
- Rated years
- 2002–2009, 4WD
Frame
- Rail top at the rear axle
- 28.7 in off the ground
- Measured on
- P245/70R16
Every calculator, set up for the TrailBlazer
Source: auto-brochures.com.
Use at your own risk. These calculators are here to help you plan and to inform your decisions, not to sign off on a build. Many numbers are estimates worked out from factory figures, and some factory figures are not yet confirmed. Check every number against your own truck, its manuals and a qualified shop before you buy parts, cut, weld, lift, regear or drive on it. Long Range Desert Tools is not liable for anything you do based on these calculators or their results. The full terms are in our policies.