The IRS CV axles were installed, they fit, and to my surprise the c-clips engaged without issue. Others have reported engagement issue, but that wasn't the case here.

Tonight Brad and I installed the rear ABS tone rings onto the rear IRS axles. It required heating the rings to a near-glow with a MAP torch to expand the inner openings, sliding them onto the axles, wait for them to cool and shrink onto the axle.