SDGComponents, Tellis Small Parts, Seal, Collar, Bushing and Keyway

The dropper is actually extremely easy to service, and this kit can be installed without uninstalling your dropper or even removing your seat (no, you do not need to mess with the actuator at the bottom). I'm just going to throw in some details to make life easy:1. Loosen the 2.5mm bolt at the top rear of the dropper post (it should be right below the rear bolt of the seat clamp) about 1.5 turns, loosen the collar completely (strap wrench makes this easier), then pull the entire stanchion out.2. Wipe off all the grease on the stanchion and inside the dropper post body. Nitrile gloves are lovely here, as you can pull them off before touching other components3. Remove all the components on the stanchion, they're all getting replaced with this kit (collar, upper bushing, lower bushing, keyways). Clean out the keyway slots nicely.4. Add some grease to the seal on the new collar, slide it on. Same thing for the upper bushing (the tan one), slide it on. Add a dab of grease into the keyway slots, then install the keyways. I install them with the mold circles facing inward and add a wee bit of grease on them.5. IMPORTANT: when installing the lower bushing (the thin black one that goes below the keyways), you need to make sure the break/slit in the bushing is at the back of the stanchion and not the front. Otherwise you can get play in the shaft. And those rectangles need to be facing up and touching the bottom of the keyways.6. Slide the stanchion back in.7. Also important: make sure the slit/break in the upper bushing is not facing toward the front or the back. SDG recommending facing it to the left or right, again for reducing play. Not nearly as critical as the lower bushing, though. Just make sure to slide it all the way in until it bottoms.8. Make sure the stanchion is in place, then retighten the 2.5mm screw at the top, back of the stanchion. Should be about 1.5 turns if you followed step 1. Make it snug, you don't need to crank down on it.9. Tighten the collar, use a strap wrench to snug it. If you don't have one, you can grab a tube and just tighten it firmly by hand.You're done. Cycle it up and down a few times, make sure there's not crazy play in it. If it's wobbling back and forth or there's tons of side-to-side play, you need to pull it back apart. You can also call SDG, they're very helpful.

Easy to install and solved the issue.