The stabilizer doesn't fix problems, only dampens road vibes transmitted from the tires into the steering system. It can't cause or fix death wobble. Putting a new one (or multiple stabs) on would be like putting a bandage over a bleeding wound and calling it good. Might stop the bleeding for a little while but it won't actually fix the problem.
Like I said on SteelSoldiers get some new tires and an alignment and see what that does.
Like I said on SteelSoldiers get some new tires and an alignment and see what that does.

i dont think so, but maybe