Anybody know who made this suspension. All control arms are hotchkis, but not sure who makes the part the upper control arm bolts to. Any help is appreciated, thanks.

http://www.chevelles.com/showroom/data/508/medium/rear1.JPG

Those are anti-hop bars... look like the Lakewood variety based on that "bushing" (using the term very loosely) setup on top.

Like these:

http://static.summitracing.com/global/images/prod/large/lak-21609_w.jpg

Thanks. They look very similar. There is a name on them but can't quite make it out. Anybody use these with any success. Thanks again.

It depends on what you want to do and how the rest of your rear suspension is setup. These bars are useful in reducing or eliminating wheel hop for drag racing when the rear end has been lifted. They are pretty useless if the car is lowered and/or for cornering performance.