Shocks for an F550
 

Was just wondering what you guys run for shocks on F550s. This is a shorter wheel base, not sure of the number, 550 with a dump body that carries mason sand and tows a bobcat. You dont run the same shocks as pickups do you?
http://a8.sphotos.ak.fbcdn.net/hphot..._1107191_n.jpg

I use factory motorcrafts from Rock auto.