I bought a 96 extended cab 2500 4x4 12v almost a year ago. Braking was smooth when I first got it. About 6 months ago it started getting a bad wobble/ bounce in the rear end while normal and moderate braking. If I brake really slow it doesn’t do it until I’m almost stoped. It almost feels like a pulsing sensation like the ABS is kicking in every time I brake. It has newer shocks, helper leaf springs and Air Lift air springs. It drives just fine over bumps so I know it’s not the suspension. I do know these trucks are notorious for axle wrap under acceleration, and I do feel that. However, the sensation I feel is far worst than the axle wrap I feel during acceleration. It’s not the front brakes, as I do not feel it in the brake peddle or steering wheel. I can feel and hear it coming from the rear end. Could it be that the drums need to be adjusted? Or am I getting axle wrap while braking? I just ordered Longhorn Fab traction bars. It has a leveling kit only with 33”x12.5 tires. There is no brake shoe noise while braking either. Everything sounds fine/ normal. Just not the bouncing vibration/ pulsating sensation I get. I should also note the it isn’t really there while driving 55 and braking. But as I slow down, the feeling kicks in and gets worst as I slow down. I’ll have the traction bars installed this weekend hopefully, and will update any changes after that. Just looking for advise on anything else I should do/ check. Thanks!