Fox Spool Valve Funnel Tool The Right Tool for a Clean Rebuild If you do your own Transfer seatpost rebuilds, you know the spool valve assembly is where things can go wrong fast. Getting those glide rings seated without folding or nicking them takes more than careful hands. This funnel tool seats onto the piston and guides the spool valve assembly in straight, compressing and sizing the glide rings as it goes so they seat correctly the first time. It is a purpose-built piece of tooling, and it shows in how much cleaner the reinstallation process becomes. Features Spool valve guide seats onto the Transfer piston and funnels the spool valve assembly in straight to protect glide rings during installation Dual-function design guides the spool valve assembly into the piston and sizes the glide rings in the same step Transfer seatpost compatibility designed for Fox Transfer dropper post rebuilds across internal and external actuation versions Part number 398-00-737 the correct Fox service tool for spool valve funnel work on Transfer seatpost rebuilds | Fox Racing Shox | Spool Valve Funnel Tool Transfer Post - Clear