Brand OE Quality
Type Transfer Case
Model Sierra Silverado 2500 HD, 2500 HD Classic, 3500 Classic
Manufacturer Part Number NP261XHD, 24228406
OE/OEM Part Number NP261XHD, RTC261GXHD1, 24228406, 12579907, 12581002, 12588514, 15023641, 15772804, 24238186, 24238839, 412458, 412542, 412604, 412-542
Manufacturer Warranty 2 Years
Interchange Part Number NP261XHD, RTC261GXHD1, 24228406, 12579907, 12581002, 12588514, 15023641, 15772804, 24238186, 24238839, 412458, 412542, 412604, 412-542
Superseded Part Number NP261XHD, RTC261GXHD1, 24228406, 12579907, 12581002, 12588514, 15023641, 15772804, 24238186, 24238839, 412458, 412542, 412604, 412-542
Note For the Floor Shift model
Fitment Type Direct Replacement
Compatible Makes Chevy, GMC
Year 2001-2007
Engine 6.6L 8.1L
Drive Type 4WD
OE Number NP261XHD, RTC261GXHD1, 24228406, 12579907, 12581002, 12588514, 15023641, 15772804, 24238186, 24238839, 412458, 412542, 412604, 412-542
Input Shaft (Internal Spline) 29
Front Output 32 (Internal Spline, one tooth missing)
Rear Output (External Spline) 31

Check the listing for details. Transfer Case 29 Spline Manual Shift for Chevy Silverado 2500 HD 01-06 6.6L 8.1L. Condition: New. Listed at 1174.90 USD. Input Shaft (Internal Spline): 29. Rear Output (External Spline): 31. Fits 2001-2007 GM Trucks with RPO code NP2. This is the manual shift unit for GM trucks with the 6.6L & 8.1L engines. It has a 29 spline input shaft that mates with the Allison automatic transmission & 6 speed manual transmission.

$587.45
$1,174.90