where is the ride height sensor?
Jamie it might be a slight bit of rust built up in the drums from the moisture in the air. I'd heard of that causing your problem.
This is common when the rear ride height sensor is removed or is tied at the incorrect angle after one lifts the truck.it is also very common with trucks where the owner does not use the absolute cheapest,softest rear brake shoes and instead they use a metallic or carbon metallic shoe.This will create a very grabby rear brake and many times it will only get worse.I had this discussion way back in early 99 with then TDR member and brake guru Sam Peterson up in the NW.I have done this ever since and have had no issues with my rear brakes at all.........Andy
I pulled the drums apart, cleaned everything & reinstalled. No rust in there. I haven't worried about it because it usually stops doing it by the time I reach the end of my driveway.
Honestly this seems more of a Chrysler issue. My truck does it to an extent and so does the wife's Durango....My old Dakota did it as well. Cheapo shoes and good spring kits seems to keep it to a minimum. Also whomever posted about the long shoe in the back and short one up front is right on the money....that makes a huge difference.
lifting the truck will make it do it LESS, lowering the truck will make the brakes apply harder (more weight in the bed, more it squats, more the brakes are applied)