I sent mine off to Gerry at Greenhulk earlier this year, great service and pretty easy process to get them in and out of the boat, even if you are not an experienced mechanic, only real issue was the rear bolts on the supercharger that attaches it to boat, bit of a PIA to get off and really helps if you have the right wrench (1/4" 12 point racheting, I think, makes it wayyy easier). Just go on the website listed in Thors posts and search 'supercharger rebuild' and the process and details are right there in the thread.