| Features | Details |
| Vortec 6000 | A Vortec 6000 V-8 and new heavy-duty 4L65-E four-speed automatic |
| V-8/4L65-E | overdrive transmission. The Vortec 6000 generates 325 hp and 385 |
| lb-ft of torque. GM powertrains new heavy-duty version of the |
| 4L60E is only found behind 6.0L engines. |
| Borg Warner | A new powertrain-integrated Borg-Warner two-speed electrically |
| 44-84 | controlled full-time 4WD system. It is capable of reducing the |
| vehicle's gear ratios by 2.64:1 when necessary for highly controlled |
| obstacle climbing. It provides a 40/60 percent front-to-rear torque |
| split in High Open when the center differential is unlocked, and a |
| 50/50 front-to-rear power split when the transfer case differential |
| is locked. The transfer case electronic control provides five mode |
| selections, including a position to control rear axle differential lock, |
| to provide optimum performance under all types of driving conditions. |
| Bosch ABS/ | A highly developed Bosch four-channel antilock braking/traction |
| Traction Control | control system (ABS/TCS). In addition to providing optimum control |
| on slippery surfaces, the ABS can detect and adjust its braking |
| capabilities to rough off-road surfaces like gravel and potholes. The |
| TCS also provides new-for-GM capabilities, including the ability to |
| gain traction through a single wheel if necessary. A new feature |
| controlled through a separate driver control switch is the TC2 |
| function. This provides for more wheel slip in the traction control |
| mode for sand and desert running conditions. |
| 4.10 Gears | A standard 4.10 axle ratio, combined with the transmission's deep |
| First-gear ratio and transfer case low-range gear reduction, |
| provides an excellent 33:1 crawl ratio for very slow, controlled, |
| high-torque rock and obstacle climbing capability. Trailering |
| capability of up to 6,500 pounds is an added benefit. |
| Beefy Control | Higher strength rear axle arms and a high-strength 911/42-inch AAM |
| Arms | 14-bolt complete the added drivetrain strength package. |
| Track Width | An extremely wide tread. H2's 69.4-inch tread, with wheels truly |
| | positioned at the extreme corners, provides extra stability on-road |
| | and helps prevent lateral tipping off-road. |
| Features | Details |
| Extended | A long wheelbase. H2's 122.8-inch wheelbase is almost 7 inches |