Trannie, no drive no od,no 2 will go in r low 1

if you drove it too far too fast in 4 wheel low. you could have done some serious damage to the trani. i have the same truck in a 1998 and the tachomiter goes nuts at 15 mph in 4 low. it was never meant to drive for any distance in 4 low. if your lucky. when your rearend went it didn't take out your drive shaft. if your not lucky. your drive shaft took some punishment and in turn damaged the trani.