only thing i realy dont like with duallys is rocks getting stuck in the back 2. then when thay come free its a big slug flying at somthing or someone.
my farmer buddy almost had this happen to him. but i found them before he went up the road. had to use a big prybar and wedge it against the flat bed rail and back up to free the one. thay both weighed over 3 lbs. hell thay could have killed someone.
if you will be doing mostly street then you will probley never need to worey about this.