[mustangmike!]

shit design along with most of the rear suspension in them ?

[ReverendDexter]

Originally Posted by mustangmike! Bigger better

Not necessarily.

[xtreme 2]

yea all about your suspension set-up. Too big and it could work against you.

[mustangmike!]

Originally Posted by ReverendDexter Not necessarily.

thats what she said

[brokenweasel]

LCA's will help tremendously, panhard bar will fix it for good (as good as the 4-link will be). The stock control arm bushings are designed to flex, which totally sucks for road feel. Notice in this picture how the stock bushing on the left is long and has holes drilled into it which gives you front to back flex, but also twisting. The new ones really tightened up the car a lot.

[ReverendDexter]

Originally Posted by brokenweasel LCA's will help tremendously

No they won't. In a 4-link, it's the triangulation of the UCAs that restricts the left-right motion of the axle. The LCAs have nothing to do with it. Their job is to restrict fore-aft motion of the axle and rotation in the horizontal plane around the differential.

[brokenweasel]

Originally Posted by ReverendDexter No they won't. In a 4-link, it's the triangulation of the UCAs that restricts the left-right motion of the axle. The LCAs have nothing to do with it. Their job is to restrict fore-aft motion of the axle and rotation in the horizontal plane around the differential.

Let me clarify: on my street-driven car that does not see the cornering limits of racing, the installation of those specific lower control arms took a significant amount of slop out of the rear end, which included cutting down the side to side wobble on turns. I understand the functions of the the different control arms, but for the axle to move sideways ALL the bushings have to give - the lower control arms must move side to side if the axle is to move sideways. Tightening up the LCA's with the solid/poly bushings as seen above, while their primary function is not for left-right articulation, made a difference in my car.

[ReverendDexter]

Originally Posted by brokenweasel Let me clarify: on my street-driven car that does not see the cornering limits of racing, the installation of those specific lower control arms took a significant amount of slop out of the rear end, which included cutting down the side to side wobble on turns. I understand the functions of the the different control arms, but for the axle to move sideways ALL the bushings have to give - the lower control arms must move side to side if the axle is to move sideways. Tightening up the LCA's with the solid/poly bushings as seen above, while their primary function is not for left-right articulation, made a difference in my car.

I understand where you're coming from and I don't think you're wrong saying that LCAs helped, but I think you're misattributing what they did. Part of the ass-wiggle is roll steer, as the stock LCA bushings allowing the LCAs to effectively have variable lengths. Aftermarket LCAs are going to get rid of that.

My disagreement in my earlier post was with the adjective "tremendously".

EDIT: After I ate some lunch I realize that "roll steer" isn't the right term for what I'm talking about. What I mean I think is actually referred to as axle steer, of which roll steer is is a subset axle steer specifically caused by suspension travel (which in the front would be bumpsteer).

[mustangmike!]

In other words the V6 and the GT were both still luxery smooth riding cars