New ACDELCO/GM rear differential axle bearing and seal kit.  Kit includes LH/RH axle bearings, LH/RH axle seal and differential cover gasket.  All parts are GM/ACDELCO.  For 8.5" 10-bolt truck rears 1999-2005.  Parts included in this listing:

2x 12471686 axle seals
2x 12479031 axle bearings
1x 26066456 differential cover gasket