Drum, Rear Brake System
Standard Rear Brake
Item
Part Number
Description
1
2069
Brake Shoe Hold-Down Spring Pin
2
—
Rear Wheel Cylinder Retaining Bolt (2 Req'd)
3
—
Washer (2 Req'd)
4
—
Anchor Pin (Part of 2211)
5
—
Wheel Cylinder
6
2028
Brake Shoe Anchor Pin Guide Plate
7
2A637
Parking Brake Lever
8
2296
Brake Shoe Retracting Spring (Short)
9
2296
Brake Shoe Retracting Spring (Long)
10
2200
Rear Brake Shoe and Lining (Secondary)
11
—
Washer
12
2106
Parking Brake Lever Pin Retainer
13
—
Brake Shoe Adjusting Lever Cable Guide
14
2A642
Primary Brake Shoe Parking Brake Lever Link
15
2A601
Parking Brake Link Spring
16
2068
Brake Shoe Hold-Down Spring
17
2A176
Brake Shoe Adjusting Lever
18
2048
Brake Shoe Adjusting Screw Socket
19
2047
Brake Shoe Adjusting Screw Nut
20
2041
Brake Adjusting Screw
21
2049
Brake Shoe Adjusting Screw Spring
22
2200
Rear Brake Shoe and Lining (Primary)
23
2A178
Brake Shoe Adjusting Lever Cable
24
2211
Brake Backing Plate
Heavy Duty Rear Brake
Item
Part Number
Description
1
—
Rear Wheel Cylinder Retaining Bolt
2
00538
Lock Nut
3
2212
Rear Brake Backing Plate
4
2262
Rear Wheel Cylinder
5
2A642
Primary Brake Shoe Parking Brake Lever Link
6
2A601
Parking Brake Link Spring
7
2A637
Parking Brake Lever
8
2106
Parking Brake Lever Pin Retainer
9
—
Parking Brake Lever Bolt
10
—
Secondary Shoe Assembly
11
2A179
Brake Shoe Adjusting Lever Cable Guide
12
2068
Brake Shoe Hold-Down Spring
13
—
Adjusting Lever Pin
14
—
Adjusting Lever Return Spring
15
2A176
Brake Shoe Adjusting Lever
16
2047
Brake Shoe Adjusting Screw Nut
17
2049
Brake Shoe Adjusting Screw Spring
18
2041
Brake Adjuster Screw
19
—
Primary Shoe Assembly
20
2068
Brake Shoe Hold-Down Spring
21
2200
Rear Brake Shoe and Lining
22
2035
Brake Shoe Retracting Spring
23
2A178
Brake Shoe Adjusting Lever Cable
24
2092
Brake Adjusting Hole Cover
25
2069
Brake Shoe Hold-Down Spring Pin
The rear drum brakes:
- Have internal shoes that expand against the brake drum (1126).
- Are a single-anchor type.
- Are actuated by one rear wheel cylinder (2262).
- Have two pistons in the rear wheel cylinder (2261). One exerts force against the upper end of the primary shoe; the other exerts force against the upper end of the secondary shoe.
- Adjust rear brake shoes and linings (2200) automatically.
- Need manual brake adjustment if the adjusters are not operating properly or after the rear brake shoes and linings have been replaced.
When the brake pedal is applied, hydraulic fluid pressure forces the pistons in the rear wheel cylinder outward, moving the rear brake shoes and linings against the brake drum.
The rear drum brake system includes the parking brake mechanism. Refer to Section 206-05 .
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