Transfer Case MPT3028: Notes
This transfer case has limited components that can be replaced. The mainshaft and clutch assembly components are not serviceable since they will change the torque classification of the transfer case assembly. If the torque classification is altered from the original, the new torque classification cannot be determined in the field. This information must be correctly entered in the DTCM to be shared with other vehicle modules. For this reason only limited components can be replaced during service. Some of the major components that can be replaced are listed below. Depending on the issue that is attempting to be repaired, check with the parts information for the complete list of components that can be serviced.
- Chain
- Bearings
- Seals
- Case halves
- Front output gear
- Shift Shaft
- Worm Gear
- Shifting Cam
- Flanges
- Motor/DTCM Assembly - This would require the classification code stamped on the transfer case housing being programmed into the new DTCM
The following components cannot be replaced separately:
- Mainshaft - Changes clutch classification
- Clutch assembly - Changes clutch classification
There are no clearances that require adjustment to account for during assembly of the transfer case. The only adjustable components are the clutches in the clutch assembly which cannot be serviced.