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Ya just got new springs today from them 1 was defective was sagging real bad and my bar will be here sat so i guess ill just try different things
Even though you have the adjustable trac bar, you still need that drop bracket. I would give BT a call and let them know that you did not receive that bracket. I'm assuming you bought this a while ago before they started including them in the kits.
'12 Ram R/T
Belltech 2/4 Drop W/SP shocks
I've got the same issue with rear end wag with my belltech drop kit with sp shocks... I also have spohn's adjustable panhard bar and everything in alignment and still have this issue as well, I'm stumped... LMK if your new springs fix the problem, I've yet to find any issues with my springs, shocks, adjustable panhard bar, bushings or any loose bolts, etc... For what its worth, my kit did not come with the relocation bracket from belltech and I aligned the rear end with the adjustable panhard bar using the stock bracket.
ahh please done tell me this. Im about to pull the trigger on a drop kit. Roads are pretty bad here in nebraska so i will most likely have this problem.
I posted this problem on another forum and did not receive any good information. I only have the 2" drop and I could feel the same problem. I rsearched it and first you have to recenter the rearend with an adjustable panhard bar then the right side of the bar MUST be higher at ride height, I found this on a panhard proper angle website. I redrilled the right side holes which raised the bar about an 1 1/4" and it removed just about all the twitch. According to the research the right has to be higher than the left to offset the torque of the rear.

I just did mcgaughys 4" in the rear and I havnt noticed anything odd at all.
the problem sounds like its on trucks that don't have the relocating bracket.
Think of it as bump steer on the rear.
If that panhard bar is at an extreme angle at normal ride height, when you hit a bump or anything else that makes the rear squat or lift, It will swing thru a crazy arc instead of just varying a little up or down..
the adjustable bar will do nothing to help, all that does is re centers the rear (which is a band aid for not relocating it correctly in the first place.
jeff
I ran outside and stuck the camera under the truck just to get a pic. I was a little curious myself to see what angle the mcgaughys relocator bracket put the panhard bar at.
it looks pretty much level, (maybe just a little lower on the axles mount which as the suspension squats, would cause just a little sideways movement one way before it goes level then reverses the direction of the arc, all in all, not really moving too much).
so far this setup works and feels just like stock.
jeff