We really need someone to make an LCA to eliminate the front Rubber mount. We don't have a replacement for the rubber and I think, they aren't worth **** after 50k miles.
I modified my LCA's and removed the old rubber, and was able to buy new rubber through GM and press them in after the arms were powder coated. I found the part numbers in a Mitchel's book, and took it to GM, and they were amazed the numbers worked, since THEY cant even get new rubber, as their books/service is to replace the entire LCA as a whole.
I have a lot of miles on them, and they are still holding up JUST fine. But I agree, the problem is the front bushing, its a joke if your car has slicks, and your able to really hook at the track hard.
The modification that was done, was basically welding in a ball end. Such as this:
in place of the front round rubber bushing.
Same ball end I have on each end of the lift arms of my tractor for my 3 point set up.
As long as you get the right size ball end...its a matter of pressing/hammering out the old rubber one, and installing the new, and having it welded in from both sides. It will cause some loose "knocking" in your suspension as it has play the stock rubber bushing would not give you. You gain some, and you loose some with this modification.
When I modified my arms...I did not install this ball end.
~F~