this is where im geting the info on the dominators...im looking for bags for the front of my dually and have the max dia to work with is 8 1/2 " b4 it would rub anything ...and thats only aired out ...but the only bag i have on hand to mock up is a re7 ...and looked into the dominators because they claim to have the most usable stroke ..
http://www.built2railmagazine.com/joom/index.php?option=com_content&view=article&id=54:new-dominator-series-air-spring-from-airlift&catid=50jdaudio&Itemid=57