Tips and advice please for IMS bearing replacement

[78F350]

I'm wondering though, can I get away with removing the muffler without removing the rear bumper?

Removing the bumper is not that hard and it really opens things up for the rest of the job.

Those little pins or rivets that hold the spoiler come out easily. One of mine had the original pin-fasteners and one rivets. Poke the pins in, or drill the rivets. The rest is just a few screws and bolts. Bag 'em and tag 'em.