Transfer Case Assembly AP02 NP261XHD Compatible With Silverado 2500 HD 3500 And Sierra 2500 HD 3500 2001 2002 2003 2004 2005 2006 2007 Floor Shift 6.6L 8.1L

Transfer case assembly for 2001–2007 GM trucks with RPO code NP2, floor shift configuration.Compatible with Silverado 2500 HD (2001–2007), Silverado 3500 (2007), Sierra 2500 HD (2001–2007), and Sierra 3500 (2007).Designed for use with 6.6L and 8.1L engines.Features 29-spline input shaft for mating with Allison automatic and 6-speed manual transmissions.Front output has 32 internal splines with one tooth missing.Rear output has 31 external splines.Requires 75W-90 gear oil.OE numbers: NP261XHD, RTC261GXHD1, 24228406, 12579907, 12581002, 12588514, 15023641, 15772804, 24238186, 24238839, 412458, 412542, 412604, 412-542.

• Designed specifically for GM Sierra and Silverado 2500 HD and 3500 models from 2001 to 2007 with floor shift configuration
• Compatible with 6.6L Duramax and 8.1L engine variants for integration into existing drivetrain systems
• Engineered as a direct replacement for the AP02 NP261XHD transfer case assembly to maintain OEM-style
• Built to support heavy-duty towing and off-road applications common to full-size HD pickup trucks
• Includes all necessary mounting points and interface geometry matching specifications