Drive Shaft Transmission Slip Yoke (OEM 3-3-5551X) for GM NP246/261/263 and TH400 applications. This slip yoke fits 1998-2007 GM trucks with NP246, NP261, NP263 transfer cases and TH400 transmissions. Replaces worn or damaged slip yoke causing driveline vibration, noise, and transfer case oil leakage. Precision-machined from high-strength steel, featuring 1350 series u-joint with 31/32 splines, 1.378" spline OD, and exact OEM dimensions. Direct bolt-on replacement with counter bore dimensions for proper fitment.
| Brand / OEM | Part Number |
|---|---|
| GM | 88964470 |
| OEM | 3-3-5551X |
| OEM | 22944357 |
| GM | 40021420 |
| Brand | Equipment_type | Model | Year |
|---|---|---|---|
| GM | Transmission | NP 246 | 1998 |
| GM | Transmission | NP 246 | 1999 |
| GM | Transmission | NP 246 | 2000 |
| GM | Transmission | NP 246 | 2001 |
| GM | Transmission | NP 246 | 2002 |
| GM | Transmission | NP 246 | 2003 |
| GM | Transmission | NP 246 | 2004 |
| GM | Transmission | NP 246 | 2005 |
| GM | Transmission | NP 246 | 2006 |
| GM | Transmission | NP 246 | 2007 |
| GM | Transmission | NP 261 | 1998 |
| GM | Transmission | NP 261 | 1999 |
| GM | Transmission | NP 261 | 2000 |
| GM | Transmission | NP 261 | 2001 |
| GM | Transmission | NP 261 | 2002 |
| GM | Transmission | NP 261 | 2003 |
| GM | Transmission | NP 261 | 2004 |
| GM | Transmission | NP 261 | 2005 |
| GM | Transmission | NP 261 | 2006 |
| GM | Transmission | NP 261 | 2007 |
| GM | Transmission | NP 263 | 1998 |
| GM | Transmission | NP 263 | 1999 |
| GM | Transmission | NP 263 | 2000 |
| GM | Transmission | NP 263 | 2001 |
| GM | Transmission | NP 263 | 2002 |
| GM | Transmission | NP 263 | 2003 |
| GM | Transmission | NP 263 | 2004 |
| GM | Transmission | NP 263 | 2005 |
| GM | Transmission | NP 263 | 2006 |
| GM | Transmission | NP 263 | 2007 |
| Part Name | 889644703-3-5551X22944357GM40021420 |
| Series | 1350 Series |
| Outside Yoke Dimension | 3.875 in |
| Bearing Cap Diameter | 1.188 in |
| To End Of Spline | 7.94 in |
| Hub Diameter | 1.886 in |
| Spline O.D. (STD) | 1.378 |
| No. of Splines | 31/32 |
| Style | SR |
| Counter Bore Diameter | 1.43 in |
| Counter Bore Depth | 0.22 in |
| Material | Steel |
| Application | For 1998 - 2007 GM NP246NP261 & NP263 Transfer Cases |