[Robznob11]

I am having some twitchy issues as well but I have much more extensive work and parts than you. I would recomend that you leave the shims alone. They adjust the caster and camber. Niether should atribute to your twitchy feel. They affect tire wear and weather it pulls to the side. Also self centering. I would center the gear box and then adjust the tierods to be equal lengths. I did this on mine not sure its correct but makes sense to me. I would think if they are different lengths it will do as you said yours is and turn more on one side. I believe the twitchy ness to be that you either need more to in or because of the drop you are having some bump steer issues. Some people try to run near zero toe but dont take into consideration the rear wheel drive will push the tires out while going down the highway so you need some toe in when measured static. Make sure its at ride hight and the suspension is settled when you pull your mesurement.