Kill Gnolls and collect 10 large patch of gnoll fur. Hunting the Darkpaws in Bramble Woods ( -1541, 1, 584 ) /waypoint -1541, 1, 584 worked great for me.
Look around the base of the Griffon Stations for bales of hay. Examine them to receive griffon down. If you went to Bramble Woods for Step 1, the Steppes Station is right nearby.
Head to the Ruins of Caltorsis ( -1396, -16, -746 ) /waypoint -1396, -16, -746 and kill Caltorsis knight until you get 2 Caltorsis tendons. If you're following along, use the Steppes Station to fly to the Oracle Tower Station to get to the Ruins quicker. Collecting the 2 tendons will complete the quest.