The spacers are heavy steel and fit like a glove. It makes a very solid leveling kit.
the sliders should both have curvature facing the front, not just the driver's side. I get that it's a matter of the shape of the shock mount bracket welded to the axle, but the fact is the passenger side protector is at such a vertical angle, any rock you hit with it, is like hitting a wall due to the sharp edge @ bottom. Not the end of the world, but design could be "better" imho, and oriented to face frontward.
Fit perfectly. Just took a little longer than I was expecting it to take because of the ZR2's stock suspension.
Gave my truck the look and lift I wanted. Easy install about 1.2 hours. Very pleased. Totally recommend.
Quick delivery and has all parts as shown!!! 589 fab is reputable company!!