Silverado SS AWD V8-6.0L VIN N (2003)
Fluid - Transfer Case: Fluid Type Specifications
TRANSFER CASE LUBRICANT
NVG 149-NP3 (One Speed Automatic) ........................................................... Manual Transmission Fluid GM P/N 88861800 (Canadian P/N 88861801)
NVG 246-NP8 (Two Speed Automatic) .................................................. Auto-Trak II, transfer case fluid, GM P/N 12378508 (Canadian P/N 10953626)
NVG 261-NP2 (Two Speed Manual) ............................................................... Manual Transmission Fluid GM P/N 88861800 (Canadian P/N 88861801)
NVG 263-NP1 (Selectable) .............................................................................. Manual Transmission Fluid GM P/N 88861800 (Canadian P/N 88861801)