Usually you want them to match by who ever makes them to keep the car balanced. But the GMPP one is not that BIG of a bar over stock so doubtful you will notice a big difference over a stock replacement unless you know how to drive your car through corners with handling in your mind.
Gee...wonder why the fronts are back ordered for the W-Body's. Could it be the hundreds of cars that have cracked or split ends that are still out on the road today? Naaaa...GM makes great parts, this would never happen. LOL
~F~
