| Subject: | First and Second Design Clutch Hub and Apply Plate for NV246 Transfer Case |
| Models: | 1999-2004 Chevrolet Full Size Pickups and Utilities |
| 1999-2004 GMC Full Size Pickups and Utilities |
| with NV246 Transfer Case (RPO NP8) |
If service requires replacement of the first design Clutch Hub (17) that is no longer available form GMSPO , the second design Clutch Hub (17) requires a second design Apply Plate (18) also be replaced in order to obtain proper stack up height in the transfer
case.
| • | 1999-2002 vehicles that require replacement of the Clutch Hub (17), P/N 88962324 second design also require the Apply Plate (18), P/N 88962331 second design to be replaced at the same time in order to obtain proper stack up height in
the transfer case. |
| • | 2003-2004 vehicles that require replacement of the Clutch Hub (17), P/N 88962324 second design also require the Apply Plate (18), P/N 88962327 second design to be replaced at the same time in order to obtaining proper stack up height
in the transfer case. |
Important:
| • | A clutch plate shim package is necessary in order to have the proper shims available for setting the correct clutch pack preload. Improper preload may cause driveability concerns and failure of the transfer case. |
| • | Transfer case shims are available from GMSPO. Refer to Corporate Bulletin Number 04-04-21-003 (SI Document ID# 1563725). |
Whenever the second design Clutch Hub and the second design Apply Plate are used, a revised stack height will have to be used. This implements a shim J-44295-4 (0.085 in. thick) in conjunction with the clutch pack shimming kit J-44295 to achieve
the correct stack height. Refer to SI Unit Repair, Transfer Case Assemble (SI Document ID# 896110).
