The front sway bar if it is hollow. Hollow bars are either 34mm or 36mm. Either one is an upgrade. The steering box is a quick ratio. If the Z28 has 15” wheels , the steering box stops will be the same. If it has 16”, you wont be able to turn as sharp. Some guys just bolt the box on, others will switch to the gbody pitman arm. The rear license plate holder is a stay down style. You can’t really use it on your el Camino but worth saving for gbody friend
Some guys are also retro fitting the rear sway bars to there gbodys. Do a search on this site for more info.
timo22
Some guys are also retro fitting the rear sway bars to there gbodys. Do a search on this site for more info.
timo22