The list below is a partial list of typical GM RPO Codes, specifically the codes pertaining to Axle Identification, Differential Type and Gear Ratio. RPO Code Description Ratio G11 Transaxle Final Drive (Ratio) 2.56 G44 Axle Rear (Ratio) 3.07 G72 Axle Rear (Ratio) 2.14 G75 Axle Rear (Ra...
(27) Added a status dialog that is displayed when an Op Code $FC (Delay for Minutes) to update the user as to the progress of the delay. (28) GMLAN Get Controller Info dialog updated to include DID $C0 (BootSoftwarePartNumber). Also corrections to enable ...
The 2006 model-year Chevy & GMC diesel pickups began arriving on dealer lots in August of this year. While not much has been added or changed to the pickup styling or option list, the big news is the new RPO code LBZ Duramax 6600 diesel engine. Go here for a look at the new trucks...