There are kits for F**d F-100's but have not seen one for a G.M. Take a look at the installations though,there are a few sites out there on the net.The conversion can be done more or less the same on any truck that has an integral post on the steering box and sector shaft that exits the frame behind the front axle.The Toyota box is from a 1979-85 4X4 straight axle truck,you can fabricate your own brackets a lot more sturdy than the ones they sell in the kits.It is pretty much up to you to set up the pitman arm and drag link.The input spline is the same as a late G.M. cool