Compatible with 2005-2014 Ford Super Duty F250 F350 F450 F550 dual or single rear wheel 4X4 trucks with front dana 60 axles The tube seal kit replace the old and worn seals to prevent dirt from entering Made of high-quality steel and rubber, durable and long-lasting Front Axle Vaccum Knuckle Seal & Hub O-Ring & Dust Seals Kit For 2005-2019 Ford Super Duty F250 F350 F450 F550 Dana Super 60