Does anyone know exactly how the OEM valve stem and TPMS go together on the 2018's? I need to replace whatever the tire shop did after messing up the original valve stem. I do not know what they did with the TPMS sensor inside after putting in a generic stem. I initially ordered #7 and it got me the stem, o-ring (already installed), and nut. Then I got to thinking about missing an outer nut or rubber TPMS mount; so I ordered #5 (rubber, mounting) and #4 (nut, TPMS). The #5 rubber has a nice pocket for a nut exactly like #4 and the nut that came with the stem. The items I have and the picture do not really jive and I would like to know exactly how they go together before I go for a new tire and take the rim without a tire to redo the OEM valve stem. The other confusing part is putting the two nuts, one in the pocket of the rubber mount, and the nut on the end practically takes up the entire threaded mount of the stem, leaving little to no room for the rim and TPMS sensor. I also wish I had a good shop to go to for tires so the one that fubar'ed the stem will never get a chance to do worse......