H165

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Hitachi H165 differentials were fitted to Datsun 1200 Sunny Trucks (B120). Type I (early) carriers were replaced by Type II in July 1979. The gear sets do not interchange between Type I and Type II.

Datsun 1200 Factory H165

Datsun B120 (1200 Sunny Truck) gear sets - H165 (HC41)
Type I carriers
* 38100-28500 4.111 HYPOID GEAR & PINION SET (37/9) (to '72-12)
* 38100-N5200 4.111 HYPOID GEAR & PINION SET (37/9) (from '73-1 to 7906)
 Type II carriers
* 38100-W9000 4.111 GEAR SET-FINAL DRIVE 7907-8605
* 38100-G3300 4.111 GEAR SET-FINAL DRIVE 8605-

Alloy Carrier

The real advantage of an alloy diff is in the reduced unsprung mass, which is particularly important in a light car like a 1200.

Nissan Competition

Also see H165 Conversion Listing

Page 29 of 1984 catalog

H165B RING & PINION SETS (TYPE I)
The ring and pinion sets listed below will fit the 710 (from 4/73), HL510 (to 6/79) and 200SX/S10.
38100-N4905 3.545 R&P SET
38100-N5000 3.700 R&P SET
38100-N5100 3.900 R&P SET
38100-N5200 4.111 R&P SET
38100-N5300 4.375 R&P SET
38100-N5400 4.625 R&P SET
38100-N5505 4.875 R&P SET 

H165B RING & PINION SETS (TYPE I)
The ring and pinion sets listed below will fit the HL510 (from 7/79) and 200SX/S110 (to 6/81).
38100-W8600 3.364 R&P SET
38100-W8700 3.545 R&P SET
38100-W8800 3.700 R&P SET
38100-W8900 3.900 R&P SET
38100-W9000 4.111 R&P SET
38100-W9108 4.375 R&P SET
38100-W9208 4.625 R&P SET
38100-W9300 4.875 R&P SET

H165B LIMITED-SLIP ASSY
38420-N5020 L/S ASSY (TYPE I) 710 (from 4/73), HL510 (to 6/79) and 200SX/S10
38420-A1260 L/S ASSY (TYPE Ii) HL510 (from 7/79) and 200SX/S110 (to 6/81)
38423-N5020 SIDE GEAR (2)
38425-18000 PINION (4)
38427-21010 SHAFT
38431-21010 PRESSURE RING (2)
38432-21010 FRICTION PLATE (1.65MM) (4)
38433-21010 FRICTION DISC (1.65MM) (4)
38433-21011 FRICTION PLATE (1.90MM) (4)
38434-E4610 SCREW (4)
38435-21010 SPRING PLATE (1.65MM) (2)
38436-21010 SPRING PLATE (1.65MM) (2)

H165 AXLES BAFFLES
These baffles can be installed in any Datsun equipped with an H165 rear axles assembly. They are designed to contain the differential oil in the center section.
43015-H7920 AXLE BAFFLE/RH
43016-H7920 AXLE BAFFLE/LH

DIFFERENTIAL OIL COOLER ASSY
21660-P9000 OIL PUMP ASSY
21664-P9000 BRACKET/OIL PUMP
21652-P9000 OIL COOLER ASSY

Donor Cars

Available from production vehicles: 3.7, 3.9, 4.111 & 4.875 reference: diff ratios

Australia

You can get 4.1:1 and 4.875:1 ratios quite easy, it is the same diff that Bluebirds (rwd Maxima) and C20 (Datsun Vanette) -- some with aluminum centers -- and some 4wd Datsun Pickup (non-1200 ute) front diffs (those are wider assemblies, though, so just use the center section).

* A10 Stanza/HL510 (1978-1982): 3.7:1
* 180B (610) wagon: 3.89:1
* Series 1 Bluebirds (810): 3.89:1
* Series 3 Bluebird wagon (910): 3.89:1

C120 van ratios

5.143
4.875
4.625
4.375
4.111
3.889

A10

1978-1981 Datsun 510/Stanza

• 38300-W8700 FINAL DRIVE ASSY, 3.545 CANADA 0779-0680
• 38300-W8600 FINAL DRIVE ASSY, 3.364 CANADA 0780-
• 38300-W8600 FINAL DRIVE ASSY, 3.364 USA 0779-

Part Sources

• Nissan
• Nismo
• Pit Road
  • LSD Nismo P/N 38420-RS110
• DatRats