Stemco 392-9112 Grit Guard Seal Kit. Includes 320-2106 blue seal and 315-1525 Grit Guard Axle Ring. 594 or 594A Inner Bearing. 555-5076 / 551-5320 Universal Head / Hub Tool. 570-0028 Bearing Guide. Application: 38,000 Lbs., 46,000 Lbs. Tandem Axles, Eaton, For, Freightliner, Kenworth, Meritor, Navistar, Peterbilt, Volvo, GM, Western Star.