8.8 swap questions

The 99, maybe the 2000 will work. The rest are IRS cars.. It does not need to be shortened to fit. That said, I’m doing an 8.8 swap and I am shortening the passenger side to have the driver side axle. That will make the rear 1/2 less wide than a standard 8 3/4. I figured I could use wheel spacers if needed. Here is a good video: Google Search