System 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)