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<p>[QUOTE=&quot;Gambi80, post: 3775985, member: 38485&quot;]The air-trac has trac bars on each corner of the axle, under the leaf spring...to preserve alignment and handle the torque instead of just a leaf spring + air bag.&nbsp; While it&#039;s arguably a tougher set-up, it&#039;s definitely the rougher riding suspension and more parts to maintain, but something that I would not let make or break a deal on a truck....JMO anyway.[/QUOTE]</p><p><br /></p>

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