If you have compared the width with an older Blazer, let's say 1985 model, whatcha got will work, Canyon. Those extra pieces are jounce bumper plates. For what you are doing, it's just as easy to cut them off.

1948 Chevrolet 1-Ton Grain Truck
In the Stovebolt Gallery SOLD
More pix in Photobucket

"A Man & His Truck--It's a Beautiful Thing!"

"You're never 100% ready, you're just next"....Ty Murray