2000 Durango 5.9 4X4 no reverse

the o/d on or off dosent make any differance for engine breaking in manual low. so, try this. put the shifter in second and start off with light throttle. when the tranny shifts to second, pull the lever into first. you should feel a bump almost right away and the car should start to slow down. if it freewheels, the band hasnt applied for reasons we talked about above.