3. After we determined exactly how much uptravel we could squeeze out of the rear suspension, we fabricated the bumpstop mounts using 1 3/4-inch, 0.120-wall DOM tubing. For strength, we tied the bumpstop mounts to the new and stock rear crossmembers. The distance inboard or outboard that you place the bumpstop will make a difference in how they perform. Be sure to cycle your suspension vertically as a unit and individually to see how the bump and axle reacts. You may find you don’t have clearance issues during vertical compression, but when the axle is twisted (vehicle articulating) contact issues may arise.