The P-flex bushings are often 2 pieces w/ a center dowel so, for the RTAB, they’d sandwich the ring the bushing sits into. For the front LCABs, the bushing is one piece, but it can be put in using common garage tools. I actually think I jumped on them w/ one foot to get them in - very scientific.
I’ve been happy with everything Powerflex I’ve had and in most cases they’re stuff isnt much more expensive than OEM if at all.