Overview

The same rear brake drum was used 1967-1994. It is an 8" diameter cast iron drum, that fits 1-3/8 wide brake shoes. Sunny Trucks started using a different brake shoe from Oct 1989.

Specs

Linings (shoes)
- 35 x 4.8 x 195 mm (width x height x thickness)
- 1.378 x 0.189 x 7.68 inch (W x H x T)
- 1-3/8 x ~3/16 x ~7-11/16 inch (W x H x T)
Total breaking area: 273 cm² (42.3 sq. in.)
B110: (manual adjusting)
- Cylinder: 11/16" with front discs
- Cylinder: 13/16" with front drums
B310: Drum LT-20 (auto adjusting)
- Cylinder: 13/16" (20.64 mm)

1978-1989 B120 ute used rear type Drum-LT20 with front type Drum2L20.

Finned Alloy Brake Drums

The fins look like structural type, not cooling type.

quote
Datsun Competition Dept supplied it's favoured teams with many experimental parts that were never sold over the counter. 1200s had alloy drums and calipers fitted as wellas the alloy diff heads from the wagons.

Finned drums like these were offered by Datsun Competition in Japan.

Rear Brake Shoe

set (8 x 1-3/8, fits B110, B210 and B310)

RAYBESTOS 371PG $15.36
WAGNER PAB371 $16.52
ACDELCO 17371B $19.02
WAGNER BD60368 $39.89

B110 rear brake parts

Rear Drum Brake

44060-G0300 SHOE ASSY-REAR BRAKE SHOE 7510-7611
44060-G0325 7612-8910
43206-18000 DRUM BRAKE-REAR
44060-G1225 8910-

1980 10 and newer Sunny Truck feature auto-adjust rear brakes:

Adjusters

B110 adjusters (manual, square adjustment nut)

44200-18000

1200 late star aduster (self-adjusting with star wheel)
44200-W5211 ADJUSTER ASSY-REAR BRAKE, RH
44201-W5211 ADJUSTER ASSY-REAR BRAKE, LH

B310 small H83 (automatic with star wheel)

44200-H8300 ADJUST. ASS'Y RH
44201-H8300 ADJUST. ASS'Y LH

B310 A14/A15 adjuster assembly (automatic with star wheel)
44209-W5210 ADJUSTER LEVER ASSY RH 
44210-25210 ADJUSTER LEVER ASSY LH

B310 star adjuster (A14/A15 models)
44202-W5210 SCREW RH
44203-W5210 SCREW LH

Part Numbers

To 7302

13/16" diameter
- 44100-18000 ASS'Y-CYLINDER-rear wheel (13/16") B10, B110 to 7302
- Fits early B110 with front drum brakes

RockAuto $13

11/16" diameter
- 44100-H0500 CYLINDER ASS'Y-rear wheel (11/16")
- Fits early B110 with front disc brakes

RockAuto $30

From 7303

44100-H3100 CYLINDER ASS'Y-rear wheel (13/16")
- for late B110 with front drum brakes
44100-H3300 CYLINDER ASS'Y-rear wheel (11/16")
- for late B110 with front disc brakes

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Rear Brakes

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