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Published on Jan 31, 2011
This is a video of a 2006 Apex with the M-20 136" suspension. Due to 60% plus coupling of the front and rear trailing arms attached together at the slide rail, you will see very little independent movement. When the front trailing arm is compressed the rear trailing arms is also compressed and when the rear arm is compressed the front arm has to compress. As a result both front and rear air springs work simultaneously to cushion the bump. This feature allows both spring to have a soft air adjustment and still keep the suspension from bottoming out over larger bumps because they are working together.