Nope, the bolt dropped out easy peasy. No issues. The rear bumpstop shaft really should be extended with these BB's as it only extends into the spring like a 1/2" at the most & is flush with the bottom of the BBs where they enter the spring. It just barely seats in there & we blow torched the springs then pressed the BB in to fuse them together a bit before putting the 2 back on the axle basically paired as 1 unit.
The fronts were a lot easier from that standpoint but were harder to get in & out due to longer springs, the longer bumpstop shaft (which is a good thing in the end of course) & the need for 2 people to shove down the axle while getting the coil in & out due to the limited travel from the track bar (which I didn't want to loosen, though could've). Anyway, the whole thing was a PITA & every little thing that fought us did, save for maybe those 2 bumpstop cup bolts
It took nearly 12 hours start to finish & I was exhausted the next day. Great to have done now!