Bill,
You might give Steve St. Laurent an email and ask about his stainless steel bars. I saw them on Gary Troyer's dually at Tulare last October, and when I can afford to, they'll go on Godzilla.
I would not be surprised if they would fit just fine on your truck, as they just bot to the rear axle and the frame, so nothing specific to the 2nd gen trucks I don't think.
Tom