The rear mounts were easy. Square body cabs have the mounts inboard from the frame rails. I made a cross member and welded it in place. Admittedly I take crappy pictures and never think to document the progress.
The front cab mounts were not bad either. The newer frame is wider than the square frame. I made up some new brackets on the frame and moved the mounts on the cab outboard. The new mounts are on the factory square floor brace. In the pic the mount is just tacked. I boxed it in and reinforced the area. I also left the floor pans out during this fab process. Thats why there is weirdo lighting and you can see the rivet holes from the previous patch job. Once I was satisfied with the new mounts I welded the new pans in.
Keep in mind I'm just a jackass with a welder and a measuring tape. Its legit been 7 years and nearly 100k miles, so I'd say my job was at least adequate.
I also kept all the original brackets on the frame. Maybe in 20 years I'll put an 05 cab back on it.
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