SEAT Workshop Service and Repair Manuals

•     I -    Input gear
• ◆ Adjusting => Page 39-77
•     II -    Pinion shaft => Page 39-68
• ◆ Adjusting => Page 39-72
•     III -    Front differential => Page 39-69
• ◆ Adjusting => Page 39-80
•     IV -    Front bevel box => Page 39-70
• ◆ Do not perform adjustments

See table on page 39-71 to prevent unnecessary adjustment work on final drive after making repairs.

I - Input gear

=> Overview, Page 39-65

A - Shim for input gear

The thickness of the shim -A- determines the bearing preload of the input gear.

• ◆ Determining thickness => Adjusting input gear, Page 39-77
• ◆ Determine thickness on basis of table => Page 39-76
• ◆ Determine parts number from parts catalogue

Input gear taper roller bearing

• ◆ Always replace together

B - Shim for planet carrier

The thickness of the shim -B- determines the planet carrier adjustment.

• ◆ Determining thickness => adjusting planet carrier, Page 37-99

II - Pinion shaft

=> Overview, Page 39-65

A - Shim for pinion shaft

The thickness of the shim determines the bearing preload of the pinion shaft.

• ◆ Determining thickness
  => Page 39-72, Adjusting drive pinion
• ◆ Determine thickness on basis of table => Page 39-76
• ◆ Determine parts number from parts catalogue

Pinion shaft taper roller bearing

• ◆ Always replace together

III - Differential

=> Overview, Page 39-65

A - Shim for differential

The thickness of the shim determines the bearing preload of the differential.

• ◆ Determining thickness => Page 39-80, Adjusting differential
• ◆ Determine thickness on basis of table => Page 39-88
• ◆ Determine parts number from parts catalogue

Differential taper roller bearing

• ◆ Always replace together

IV - Front bevel box

• ◆ Do not perform adjustments

For information only:

Position of shims

A - Shim S4

•     S4 -    Shim for bevel gear positioning and friction torque

B - Shim S3

•     S3 -    Shim for shaft bevel gear

C - Shim S1

•     S1 -    Shim for bevel gear taper roller bearing friction torque

D - Shim S2

•     S2 -    Shim for bevel gear positioning and friction torque