These Rear upper trailing arms are a direct bolt on replacement for your Arctic Cat Wildcat 1000. We use a high quality 1-1/2" DOM tubing and offer these in 2 versions. The first version is called "Trail Worthy" with uses a .125 wall thickness. The second version is called "Tank Status" and is perfect for those who bash in rocks all day and need the super beefy 1-1/2" DOM with 1/4" thick wall. Both versions are stronger than factory. Comes in a set of two (one passenger and one drivers) upper trailing arms. Comes raw steel.