Originally Posted by bareftn
Looks like in your pic. you have two sets of springs? Which one is the helper springs and I don't see the air bags
The lower set of springs is the main leaf pack, the upper set is not really helper springs, but are factory overloads. Those 2 terms have become inter changeable now. What oems did was use 2 spring pack instead of one so when not towing/hauling heavy the ride was nicer. Then when towing/hauling the weight caused the second set of springs to contact the upper spring perches and act like one large spring pack.
The air bags are inside the spring right under the fram