Why Does a 2-Link Rear Suspension Limit Articulation?

First off, we should take a moment to clarify that a GM style, truck trailing arm (the rear suspension used in NASCAR) is not the same design as the 2-link that is commonly used in the air suspension industry. The 2-link that we are discussing in this video is the design where the front points are typically bolted into the factory leaf spring mounts. It should also be noted that ladder bars are also a type of 2-link that has similar binding issues that are inherent to the design. This particular 2-link va