Adjustable LCA's and PHB?
This is about the ONLY way to get spherical bearings as the bushing material however.
The PHB is the piece that is typically bought for it's adjust ability. Cars that are lowered will see the rear diff move to the left. So shortening the bar to get the rear diff recentered requires a threaded bushing end.
Bushing material differs greatly. Anything other than a spherical bearing will see the bushing bind in the mount as the suspension goes through it's range of motion ... some material worse than others ...
HTH
If you are trying to fit big tires on your car the adjustalbe lca and phb help you center the tires left to right and front to back so that they don't rub. moving the rear forward and backward also changes center of gravity. More to the front the easier for the front to lift. the more to the rear the harder the front is to lift.
generally you want the front as easy to lift as possible untill you get to a certain point the you want to keep it there. The lca are just one more thing to help adjust that.
The lenth of the TA also as an effect on center of gravity.


