http://www.prnewswire.com/news-releases/meritor-defense-supports-lockheed-martin-with-protec-suspension-for-jltv-development-contract-167596885.html Meritor Defense Supports Lockheed Martin with Protec Suspension for JLTV Development Contract] - Prnewswire.com, August 27, 2012 The independent air suspension offered 16 inches of travel and greatly reduced crew fatigue through a smoother ride over terrain.