I don't think there's any "bolt in" kits for that, they all pretty much are either going to need welded in, or require some sort of frame modifications to work. I will tell you, just from my experiences with them, stay away from anything Mustang 2 based. The Mustang 2 frontend is way too light to even be considered for any full size truck, like sending a boy to do a mans job, as Jerry would put it. If you do use a kit, find one that uses either GM Metric chassis (A and G body '78-'87, F body '78-'81) or C4 Corvette ('84-'96) parts. Or even better, if you don't mind a little fabrication, the entire C4 Corvette suspension crossmember can be had for less that what any of the conversion kits cost, and it's better parts. A crossmember from the '98-'12 Crown Victoria would also be a viable option. A '73-'87 C10 crossmember could also be used if you want to keep truck rated parts, but it will be a little wide.
