Transfer Case Assembly for GM Trucks 6.6L 8.1L 2001-2007 NP261XHD

（for GM trucks 2001-2007 with RPO code NP2. This is the manual shift unit that for GM trucks with the 6.6L & 8.1L engines and has a 29 spline input shaft that mates with the Allison automatic transmission & 6sp manual transmission.