It's very easy to do. Let the air out, screw the old one out and the new one in. Is it worth while? That is your choice. How often do you change your bottom out resistance? If you haven't seen it, here is the part.67degrees said:Manitou No-Tool SPV Volume Adjuster Upgrade. Has anyone added one of these to their Swinger shock reservoir? If so, how difficult was the installation and how do you like the no-tolls adjustment? Is it worth the money?![]()