These mounts are made to be welded directly to your tubing. This is a super strong CNC bent, laser cut bracket made to take serious abuse. Perfect for a three link or four link suspension system. These are made to be attached to a tube chassis or tubular crossmember and have an inside width of 2 5/8" or 2". We offer three different mounting angles so that you can mount your suspension joints in a neutral position to maximize joint articulation. Like all of our products, they are made in the USA from USA steel.