Outer Limits 4x4 Board

basically just wondering would it be a fairly simple swap or would it need new mounts welded to the diffs?
and also what are the diff ratios in them like?
and are they much wider than the standard 75series diffs?

They are about 2" wider per side.

Ratio choices are as normal (4.11)

You will need to change the mounts on the diff and you will also run into issues with the ubolt closest to the diff pumpkin.

There are plenty of threads on here all about this.

This has many covered a few times recently, search it up, you will need to cut and weld things.