Fox 2.0" Two Tube Bypass Shock Standard O-Ring Rebuild Kits For 7/8" Shaft With Piggyback Reservoir Axia Alloys Mounts you could use this filter

you could use this filter housing for power steering

and metal transfer for longer engine life

1 Thin o-ring that goes underneath the shock piston wear band

AN #4 side is 7/16"-20 thread

Fox 2.0" Two Tube Bypass Shock Standard O-Ring Rebuild Kits For 7/8" Shaft With Piggyback Reservoir Axia Alloys Mounts you could use this filterDon't forget to purchase a shaft bullet (listed below). There's nothing worse than having to rebuild your shocks twice, simply because you tore a seal when you were reassembling your shock. This cheap tool saves a lot of headache and time spent in rebuilding your Fox shock absorber. 803 00 223 A Kit Includes: Shock Body Seals: 1 Wiper seal for the bearing cap 1 Wiper seal for the shaft bearing shaft guide 1 Internal o ring for the shaft bearing shaft