Installed my BMR tubular poly/poly rear lower control arms a few days ago. Seems to improve ride, makes rear more stiffer over bumps and improves traction. I was turning around in a tight spot and they seemed to bind up(could not turn wheel as far as I used to). anyone experience this. These are on my 93 z28, it is not a daily driver, but I need to know, will I experience any problems on say long entrance or exit ramps(alot of them by my house).Do I need to watch my speed on these and take it slow till I hit the straight. Will they bind up on them? I really like the mod though.worth the money. Also should I get the Panhard rod too. thanks,Pickerman

 

There shouldn't be any change. Do you have subframe connectors? If not you may be experiencing flex on the brackets they're connected to. Control arms should only improve your ride.

Panhard bar wouldn't be as important as a set of relocation brackets or subframe connectors right now but you should get one as part of a complete suspension setup.

 

If you tightened up the LCA bolts without preloading the rear suspension, they will bind.

 

About a year ago there was a MASSIVE discussion on poly/poly LCA binding. Very detailed, in depth physics, etc. The conclusion was that you can do your car's handling more harm than good with these things. I don't have them for that reason.