Piper1 said:
opening can of worms but I was thinking too on power flex RTABs as well instead of new oe with limiter kit on them....thoughts?
Why go for OEM plus limiter?
If you're opening up the rear suspension and your car's got miles, it always makes sense to swap out the bushings if you're preformance minded as they are an aging product.
Fitting back polyurethane bushings is way easier, they last longer, have limiters build in, and have no problems with lowered cars, because they don't require pretension (they act as a bearing).
Normally if bushings are fitted they must be in unstretched situation when the car is just sitting. If you lower your car, there is a constant tension (stretch) on the rubber in the bushing. That limits its lifespan and thus its performance.
There are also pillowball solutions for this, but they are more expensive, and if you have a pillowball without internal liner they will rattle, and if not shielded from dust they will wear.
If you go poly, just be sure to get good ones. Powerflex is great (the best I think), Strongflex also has some good applications (but also some that have to be avoided), but dont buy unknown brands from india on ebay or american crap like AKG. I've seen bushings from AKG that dont have knurling inside to act like a grease trap. That's not good for a bushing that acts like a bearing.
And dont go to crazy stiffnesses in the Shore D scale (again...AKG)