Mid 90's body style dually....

How much did the rear end need to be narrowewd to fit the 22inch semis on it with a stockfloor bodydrop?

CAB AND CHASISS WORK ON THE OLDER ONES BACKING PLATE TO BACKING PLATE IS 44 INCHES WE R BODY DROPIN MY BUDDYS NOW BUT ITS A SQUARE BODY BUT HOPEFULY WE WONT HAVE TO MESS WITH THE REAR FENDERS IT SHOULD CLEAR BECAUSE ITS SO FAR IN BUT THIERS NOT MUCH ROOM FOR THE PARALLEL 4 LINK ITS A INCH AWAY FOM THE BACKING PLATE

narrow 3.5" on each side

http://www.streettrucksmag.com/content/view/99/36/

I talke dto the guy that built mine today, and he said it has the cab and chassis rear end under it and it should be fine.