Differential, Adjusting: Notes

Special tools and workshop equipment required 

• Transmission Support VW 353
• Magnetic Plate 50 mm Dia. VW 385/17
• Dial Gauge Holder VW 387
• Thrust Plate VW 402
• Punch VW 408 A
• Thrust Pad 3005
• Tube 3259
• Press Tube 3345
• Torque Wrench (5-50 Nm) V.A.G 1331
• Kukko Extractor 46-58 mm 21/7
• Kukko Support 22/2

A new differential adjustment is required when the following components have been replaced:

• Transmission housing
• Clutch housing
• Differential housing or
• Differential tapered roller bearing

Adjustment overview, refer to ADJUSTMENT OVERVIEW .

-- Press the outer race/tapered roller bearing with shim -item 8- in DIFFERENTIAL OVERVIEW  into the clutch housing.

Fig 1: Identifying Outer Race/Tapered Roller Bearing Pressed Into Clutch Housing

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install the outer race/tapered roller bearing without adjustment shim into the transmission housing.

Fig 2: Identifying Tapered Roller Bearing Outer Race Pressed In Transmission Housing

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Insert the differential into the clutch housing.

-- Position the transmission housing and tighten the 5 bolts to specification. Refer to -items 13 and 14- in TRANSMISSION HOUSING AND SHIFT UNIT OVERVIEW .

-- Press the differential in the direction of the clutch housing and rotate 8 times at the same time.

-- Press the differential in the direction of the transmission housing and rotate 8 times at the same time.

-- Install the measuring tools to the transmission housing.

-- Set the dial gauge with a 1 mm preload to "0".

Fig 3: Identifying Dial Gauge

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

A -

30 mm dial gauge extension

-- Move the differential up and down, read off the play on the dial gauge and make a note of it (example: to 0.70 mm).