For those doing the ls1/f-body rear swap - someone's finally started selling the just boot that covers the parking brake lever. Previously you could only get it with an entire rear brake servicing kit (something like $150 per side).

http://www.rmsautoparts.com/proddetail.php?prod=0FH-Brake-Boot

All kudos to the guys at pro-touring.com for finding this elusive part.