First time 4 wheel'n JT on desert terrain w/ mountains NW of Yuma, AZ. 6800 miles on stock Overland w/ Bridgestone 18" A/T's. All ranges worked great. Bottomed out 3 times,ouch. One level we bottomed up and over small uphill trail, no views over, and descended down 22 degree angle. Woo Hoo...