Trav,
On my 2 wheeler... . oh wait a sec. its a 2 wheeler, it doesnt have one. :-laf Or what i can remember it doesnt. I dont have to worry about it for a while anyways. It gets great fuel milage right now setting on jack stands in my shop :{
I'll take a look on my dually about the bushings. Are you just wanting to replace the two that bolt to the frame, or the rubbers on the end pieces also? If its just the two centers they should just unbolt and slide off around the bar, but dont quote me on that. Thats the way they are on chevy's anyways.
Lance