Remove/install rear axle differential

AR35.31-P-0522MSA

Remove/install rear axle differential

18.02.2020

Model

257 with engine 256, 264

3

Bolts

5

Screw

7

Propeller shaft

9

Spacer ring

37

Rear axle shafts

37a

Protective rings

37o

Retaining rings

50

Rear axle gear

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

 Caution

Risk of injury to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil

Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.

AS00.40-Z-0001-01A

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Notes on repair work on suspension components

AH00.00-P-0100-01A

 

Remove/install

1

Remove right rear axle shaft(37).

AR35.30-P-0621MSA

2

Remove exhaust system.

Model 257 with engine 264

AR49.10-P-7142MRH

Model 257 with engine 256.9

AR49.10-P-7142MSA

3

Remove rear heat shields under propeller shaft.

4

Remove center reinforcement under propeller shaft intermediate bearing.

 Bolt, center reinforcement to frame floor assembly

*BA61.10-P-1003-01L

5

Unfasten propeller shaft intermediate bearing.

 Bolt, propeller shaft intermediate bearing to frame floor assembly

*BA41.40-P-1001-01H

6

Detach propeller shaft(7) from joint flange at rear axle differential(50) and secure against bending.

Model 257 with engine 256, 264

AR41.10-P-0040-01MSA



Drift for releasing the fitting sleeves in the flexible couplings

WF58.50-P-4110-01A

 Flexible coupling to transmission/rear axle differential or propeller shaft

*BA41.10-P-1001-01M

 Counterholder

*176589004000

7

Prop up rear axle differential(50) and lash down securely.



000 588 10 62 00 Support plate

WS26.00-P-3309B



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B

8

Remove screw/bolts (3).

 Bolt, rear axle differential to rear transverse bridge

*BA35.10-P-1006-01H

9

Remove screw (5).

 Rear axle differential to front adapter

*BA35.10-P-1005-01H

10

Lower rear axle differential(50) slightly.

11

Remove spacer ring(9).

12

Pry left rear axle shaft(37) out of rear axle differential(50) and secure against falling down.

 Do not position lever on protective ring (37a). Support lever, e.g. using a socket wrench, on rear axle differential (50).

 Installation: Replace locking ring (37o) on inner spline profile.

 Installation: Check radial shaft sealing rings and replace if damaged.

13

Remove rear axle differential(50) downward toward right.

14

Install in the reverse order.

15

Check oil level in rear axle differential(50) and correct if necessary.

AR35.31-P-0520-08MSA

 Oil filler screw of rear axle differential

*BA35.31-P-1002-02H

 Model 257 with engine 256, 264Filling capacity

*BF35.31-P-1001-02E

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

Sealant, Omnifit 100H (50 g)

*BR00.45-Z-1061-01A

 Rear axle carrier

Number

Designation

Model 257

BA35.10-P-1005-01H

Rear axle differential to front adapter

Rear axle differential (steel)

Nm

-

Rear axle differential (aluminum)

Stage 1

Nm

40

Stage 2

°

45

 Rear axle carrier

Number

Designation

Model 257

BA35.10-P-1006-01H

Bolt, rear axle differential to rear transverse bridge

Nm

170

 Rear axle differential housing

Number

Designation

Model 257

BA35.31-P-1002-02H

Oil filler screw of rear axle differential

Nm

50

 Propeller shaft

Number

Designation

Model 257

BA41.10-P-1001-01M

Flexible coupling to transmission/rear axle differential or propeller shaft

Direct threaded connection

Stage 1

Nm

60

Stage 2

°

90

 Propeller shaft intermediate bearing

Number

Designation

Model 257

BA41.40-P-1001-01H

Bolt, propeller shaft intermediate bearing to frame floor assembly

Nm

25

 Frame floor assembly

Number

Designation

Model 257

BA61.10-P-1003-01L

Bolt, center reinforcement to frame floor assembly

M10

Nm

23

M6

Nm

8

 Rear axle gear

Number

Designation

Model 257

BF35.31-P-1001-02E

Filling capacity

ALU rear axle differential 183

Liter

0,8

Sheet

BB00.40-P-0239-71A

ALU rear axle differential 197

Liter

0,9

Sheet

BB00.40-P-0239-71A

ALU rear axle differential 205

Liter

1,0

Sheet

BB00.40-P-0239-71A

Repair materials

Number

Designation

Order number

BR00.45-Z-1046-04A

Loctite 7063 (400 ml) cleaning spray

A 001 986 71 71 09

BR00.45-Z-1061-01A

Sealant, Omnifit 100H (50 g)

A 002 989 23 71