Slide hammer works fine without damage to the CV joint or to the diff-side. I replaced 4 front wheel bearings & 2 rear wheel bearings over the 197+ miles on my GT. The only thing I would add, is do not
use slide hammer to remove wheel bearings if not replacing
the wheel bearings. I have pulled the hub right out of the bearing assembly twice out of the 6 wheel bearings I have replaced.
Pics. of my slide hammer I put together. I used a old hub & adapted to my slide hammer.