Gradall’s XL 4100 IV highway speed wheeled excavators introduce AutoDrive, which features a six-speed automatic transmission and new transfer case. Operators can drive the excavators at speeds up to 60 mph and reposition the carrier on job sites from the upperstructure cab. Models with 6 x 4 undercarriages weigh 47,500 lb, while 6 x 6 models weigh 49,420 lb. Both have Tier 4i engines and feature the new yellow high-visibility color.