More mileage. with shell and without?

[RLDSL]

That wouldn't last across the first rail-road track.

My point exactly. Heck, we've got a set of tracks in this town that trucks have to cross regularly to get to a couple of MAJOR national manufacturers , and their trailer bellys barely clear and dolly gear regularly gets hung to where they have to call the railroad and stop the trains. Those dang skirts would get totaled first time across a set of tracks like that, and hazards like that exist all over. It's just plain stupidity to think that belly skirts would hold up

 

[bobbywalter]

hmmm.

my 7.3 psd van pulled 23 last 4k plus miles going to work. had to use it cause my steering gear blew on my pickup when i was headed out. 7800 plus pounds 65ish mph. thats about 2.5 better then with just the ladder racks on.

no psd pickup i used got that consistantly. we had an 05 6.0 for awhile and hi 17 was it.