AUDI A4 1998 B5 / 1.G 01A Transmission Differential Assembly User Guide
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Fig. 8  Installing large tapered roller bearing outer race into final 
drive cover 
    
Fig. 9  Removing ring gear from differential housing
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Page 12 of 14
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WARNING! 
Wear protective gloves.  Fig. 10  Installing ring gear
-  Use 2 centering pins -A- (locally available) as guides.
- 
Heat ring gear to approx. 100 C (212 F) and install.
    
Fig. 11  Installing differential bevel gears
-  If large differential bevel gears have been replaced, measure and 
select new shims   Fig. 12
 . 
-  Insert large differential bevel gears with measured shims.
- 
Install small differential bevel gears (turned 180 ) from their final 
position, and rotate into place (arrow). -  Install and align thrust washers.
- Insert threaded pieces. 
-  Drive differential gear shaft for bevel gears in to stop and secure with 
roll pin. 
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Page 13 of 14
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Note:  
From this point on, do not interchange differential bevel gears and their 
respective thrust washers.  Fig. 12  Adjusting differential bevel gears
-  Insert large differential bevel gears with thinnest shims (0.5 mm).
- 
Insert small differential bevel gears (turned 180 ) together with thrust 
washers. -  Drive in differential bevelgear shaft.
-  Press small differential bevel gears outward.
-  Press large differential bevel gears in direction indicated (arrows), and 
check play. 
-  Determine thickest shims for large differential bevel gears (on each 
side) which still just fits. 
-  Shims for both sides should be of equal thickness.
-  Identify shims according to table. Part numbers   parts catalog
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Page 14 of 14
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       The following shims are available:  
     
Shim thickness (mm)  
0.50  0.70  0.90  
0.60  0.80  1.00  
     
Note:  
    
The adjustment is also correct if no further play is perceptible, as long as 
the differential bevel gears can still be turned (arrow). 
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