Transfer Case Bearing, Gasket and Seal Kit.BW4484, aluminum cases, chain driven.
2003-up Denali Only "NR4" option (AWD 2-speed) (8.1L) 2003-up H2 (6.0L)
BW-4484 Manual Shift (Not for Electric Shift) Rear Transfer Case Half with Casting Number 44-84-039-901 / 89059498. Not compatible with electric shift version.