It's been my experience that older, used body's, especially the unibody set ups that have had some amount of 'non stock' power fed through them will be bent. Either from actual chassis/body twist or from suspension components being not what they 'should ' be. If you're running leafs in the rear, my suggested fix would be to have the leaves re-arched or add to them as needed to reach the desired ride height. I personally try to stay away from lift blocks (where they'd work, re: spring over axle set ups) because of added leverage to the spring pack and that leads to an asemetrical spring loading scenario which leads to chasing handling gremelins. The battery in the right rear will definately contribute to a sag on that corner. JMHO.
Rob Hawes-Anchorage Rod Works-Anchorage, Alaska
Last edited by White Lightning; 04-30-2013 at 11:38 AM.