hey guys i was driving buy my local dealer ansd decided to stop and drool over the new superdutys. anyway i saw a 03 f150 and it had coil type springs on top of the rear leafs. is that a factory setup??they were running parerell with the leafs. not vertical like a normal coil.

 

Probably helper springs.(aftermarket)

 

Sounds like a Roadmaster helper spring.

 

o ok cool, i just have never seen that setup before.