Countershaft Extension Assemble T56 Base Model
                    
Tools Required
|     •  | J 39473 Mainshaft
Bearing Installer | 
 
- Install a new small tapered
bearing, using the 
J 39473 
,
 V-blocks, and a hydraulic press.
 
- Do the following when
installing the 5th/6th speed synchronizer assembly:
 
| 2.1.  | Start the press operation. | 
 
| 2.2.  | Stop pressing before the keys engage the blocking ring slots. | 
 
| 2.3.  | Lift and rotate the 5th speed gear in order to engage the keys
with the blocking ring. | 
 
| 2.4.  | Continue pressing until the synchronizer is seated. | 
 
- Install the following parts in order:
 
| 3.1.  | The 5th speed drive gear caged needle bearing | 
 
| 3.2.  | The 5th speed drive gear | 
 
| 3.4.  | The 5th speed drive gear inner cone | 
 
| 3.5.  | The 5th speed drive gear friction cone | 
 
| 3.6.  | The 5th speed drive gear blocking ring | 
 
| 3.7.  | The 5th/6th speed synchronizer assembly (The inside diameter (ID)
groove on the sleeve faces 5th speed gear.) Use the 
J 5590 
 and a hydraulic press. | 
 
- Install the following
parts in order:
 
| 4.1.  | The 6th speed drive gear blocking ring | 
 
| 4.2.  | The 6th speed drive gear friction cone | 
 
| 4.3.  | The 6th speed drive gear inner cone | 
 
| 4.5.  | A new 5th/6th speed synchronizer retainer ring | 
 
- Install the following
parts in order:
 
| 5.1.  | The 6th speed drive gear spacer | 
 
| 5.2.  | The 6th speed drive gear caged needle bearing | 
 
| 5.3.  | The 6th speed drive gear spacer | 
 
| 5.4.  | The 6th speed drive gear | 
 
- Install the 5th/6th speed
shift fork.