Lloyd, my Trail Gear sliders, originally made for Toyota Tacomas, I believe, are 67" overall. Although they might not be the style you want (they don't have the kick-outs at the rear), they are tough as heck. Although mine have taken something of a beating, and they are scratched, they don't have one dent in them. They're made from very tough steel and are drawn-over-mandrel (DOM). I only have three legs connecting to them frame and they haven't moved or flexed either.

I only have experience with a two inch body lift and installation thereof. There may be more work with a three inch, I don't know. I'm happy with 2" myself.

John B.