The Jimmy seems to be getting much harder to shift into 4Lo, I will try this week again to remember the steps. I remember I was getting almost a gears against gears sound? I always put the tranmission in Neutral, then shift the tcase. Is there a specific procedure I should be following? How about when you shift back into 2Hi? Seems like I remember old Dodges or something you were supposed to 'back up' a few feet to disengage the 4wd? I dont remember it being nearly as hard or making the noise a few years ago? Could it be something as silly as low fluid?