This has confused me, too.  But the 'Genius Seal' is what goes into the pivot points for both the closing arm and the firming arm of the JD 60/90-series drills (probably fits the 50-series, too).  Both RK Products and Mother Deere sell kits to seal and/or lubricate this area (no OEM grease zerks on 60-series, so RK sells a greasable bolt for this).

The 'Seal Sealer' is what is supposed to improve bearing longevity on the OEM closing wheels on the 50-series.