| 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| Superseded Part Number | NP261XHD, RTC261GXHD1, 24228406, 12579907, 12581002, 12588514, 15023641, 15772804, 24238186, 24238839, 412458, 412542, 412604, 412-542 |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.