These brackets are made to be welded to your frame. These brackets are made with strength built in due to the gussets being made into the bracket. These gussets also pre-align the bracket to the desired mounting angle. 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 your frame and have an inside width of 2 5/8" or 2". We offer three different mounting angles so that you can mount your Joints in a neutral position to maximize axle articulation. Barnes4wd Inner Frame Link Mounts are sold in pairs. Like all of our products, they are made in the USA from USA steel.