RAM 2500 2019 Owner's Manual page 330

328 STARTING AND OPERATING
Crossing Large Rocks
When approaching large rocks, choose a path which ensures
you drive over the largest with your tires. This will lift your
undercarriage over the obstacle. The tread of the tire is
tougher and thicker than the side wall and is designed to
take the abuse. Always look ahead and make every effort to
cross the large rocks with your tires.
CAUTION!
• Never attempt to straddle a rock that is large enough to
strike your axles or undercarriage.
• Never attempt to drive over a rock which is large
enough to contact the door sills.
Crossing A Ravine, Gully, Ditch, Washout Or Rut
When crossing a ravine, gully, ditch, washout or a large rut,
the angled approach is the key to maintaining your vehicle's
mobility. Approach these obstacles at a 45-degree angle and
let each tire go through the obstacle independently. You
need to use caution when crossing large obstacles with steep
sides. Do not attempt to cross any large obstacle with steep
sides at an angle great enough to put the vehicle at risk of a
rollover. If you get caught in a rut, dig a small trench to the
right or left at a 45-degree angle ahead of the front tires. Use
the removed dirt to fill the rut ahead of the turnout you just
created. You should now be able to drive out following the
trench you just created at a 45-degree angle.
WARNING!
There is an increased risk of rollover when crossing an
obstacle, at any angle, with steep sides.
Crossing Logs
To cross a log, approach it at a slight angle (approximately 10
to 15 degrees). This allows one front tire to be on top of the
log while the other just starts to climb the log. While climbing
the log, modulate your brake and accelerator to avoid spin-
ning the log out from under your tires. Then ease the vehicle
off the log using your brakes.
CAUTION!
Do not attempt to cross a log with a greater diameter than
the running ground clearance or the vehicle will become
high centered.