Descending
It is essential to change into low ratio 1st gear, before tackling a descent.
Lock the central differential and the rear differential if the vehicle has one.
Go down slowly using engine braking, without touching the pedals.
NEVER USE THE CLUTCH.
If the vehicle starts sliding, accelerate carefully to regain traction.
On very steep hills, brake lightly as well as using engine braking, and progress inch by inch.