Whats that lever for?
Ram trucks equipped with 4WD have a full time chain driven transfer case (NVG231HD in 1500’s, NVG241 or NVG241HD in 2500’s and 3500’s) that should only be engaged on low traction surfaces. Usage on pavement can cause damage due to driveline binding; usage on rain slicked pavement is open to debate. Some insist it is still a bad idea; personally I am willing to trade extra tire and driveline wear for the safety and stability 4WD adds. A good indication is if the rear wheels slip under moderate throttle input (pedal to the metal neutral drops DON’T count :), you’re probably safe slipping it into four wheel drive. All available transfer cases are shift on the fly for 4Hi and can be engaged by pulling the shift lever towards you. The drivers manual recommends this only be done below 55MPH. If done while parked, it may take a little movement for the system to engage (see below). Engagement for 4Lo provides an extra 2.72 gear reduction for use in deep snow, loose sand, and whenever high torq