MAC,
Depth would have been somewhat of an issue, but the undercarriage would have been a bigger issue. My rocker panels slammed down on big rocks so hard in places I thought I was going to lose a filling or two! I'm glad my old truck has the steel rocker panels vs. aluminum. We did end up with about 6" or so of water in the floorboards. H2 guys would have had to had scuba gear while changing tie rods.
Scot Smith
1994 HMC4, Locked
"They're right, Wider IS Better..."
Southern Axle & SteeringRemanufactured Driveline & Steering Parts for Hummers