Alloy Gear Carrier

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B10 Datsun 1000 came with a light alloy version of the H145 differential.

Only 9kg
Post 498967

Overview

The alloy carrier is weaker (less able to handle the torque) but is lighter at only 9kg, thus keeping unsprung weight down — a perfect part for the lightweight Datsun Sunny 1000.

B10 4.111 (37:9) sedan & coupe
B10 4.375 (35:8) van
B20 4.625 (37:8) truck

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• All use the same #Gear Carrier
• The bearing cap fit over studs and are secured with nuts, compared to the B110 cast iron H145 which uses bolts
• Instead of the inexpensive crush sleeve that the cast iron H145 uses, the alloy unit uses reusable shims for side bearing preload

Distinguishing feature: studs fasten the bearing caps (cast iron carriers use bolts)
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'37 X 9' stamping indicates 4.111 gear ratio (37/9), as used by B10 sedan and Coupe
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Compare to H165 Alloy Carrier, which has four strengthening ribs on each side:
H165 Alloy

H145 alloy has three ribs on each side
Upload click to view

H145 alloy has the usual X-shape flange
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It is a common swap into the B110 Datsun 1200
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This one has been fitted with no-slip LSD
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9kg. The bearing towers are marked 'A' and 'B'
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Carrier Assembly

The Carrier Assembly, also called the diff center or 3rd-member 'pumpkin', comprises the #Gear Carrier with differential gear case and gearset installed.

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Gear Carrier

B10 Datsun 1000 H145 alloy carrier
38310-18000 COMP.-CARRIER, gear ALL
fixing differential bearing cap (4 used)
* 38315-18000 STUD
* 38317-18000 WASHER
* 38318-18000 NUT

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The gasket face is 86mm Outside Diameter
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Part Numbers

GEAR CARRIER & GEAR
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   38300-18000 ASS'Y-CARRIER, with gear (37 T : 9 T) Sedan & Coupe
   38300-18100 ASS'Y-CARRIER, with gear  (35 T , 8 T) Van <  38300-H0700
   38300-H0700 ASS'Y-CARRIER, with geer (35 T : & T) Van
   38300-15400 ASS'Y-CARRIER, with gear (37 T : 8 T) Truck < 38300-G0500
   38300-G0500 ASS'Y-CARRIER, with gear (37 T : 8 T) Truck
1    38310-18000 COMP.- CARRIER, gear 4
       fixing differential bearing cap
2      38315-18000 STUD 4
3      38317-18000 WASHER 4
4      30318-18000 NUT 4
5    38100-18000 SET-GEAR. hypoid with pinion (37 T : 9 T) Sedan & Coupe
     38100-18100 SET-GEAR, hypoid with pinion (35 T : 8 T) Van
     38100-H0700 SET-GEAR, hypoid with pinion (35 T : 8 T) Van
     38100-15400 SET-GEAR, hypoid with pinion (37 T : 8 T) Truck
     38100-G0400 SET-GEAR, hypoid with pinion (37 T : 8 T) Truck (from '69-Nov.) <x> 38100-15400
6    38102-18000 BOLT-drive gear 8
     38102-18100 BOLT-drive gear 8 <> 38102-18000
7    38103-18000 STRAP-lock bolt 8
     38103-18001 STRAP-lock bolt 4 <> 38103-18000
     38103-18100 STRAP-lock bolt 4 <> 38103-18001
8    38421-18001 CASE-differential gear
9    38423-10000 GEAR-side, differential bevel 2 
10   as required
     38424-18000 WASHER-thrust, side gear
     38424-18001 WASHER-thrust, side gear
     38424-18002 WASHER-thrust, side gear
11   38425-18000 MATE-pinion, differential bevel 2
12   33426-18000 WASHER-thrust, pinion mate 2
13   38427-18000 SHAFT-pinion mate
14   38428-18000 PIN-lock, pinion shaft
15   38440-14361 ASS'Y-BEARING, differential side 2
16   as required
     38453-18000 SHIM-adjusting, drive gear (0.05 T)
     38454-18000 SHIM-adjusting, drive gear (0.075 T)
     38455-18000 SHIM-adjusting, drive gear (0.125 T)
     38456-18000 SHIM-adjusting, drive gear (0.25 T)
     38457-18000 SHIM-odjusting, drive gear (0.5 T)
17   38120-18000 ASS'Y-BEARING, drive pinion, rear
18   38140-18000 ASS'Y-BEARING, drive pinion, front
19   as required
     38125-18000 WASHER-adjusting, drive pinion bearing
     38126-18000 WASHER-adjusting, drive pinion bearing
     38127-18000 WASHER-adjusting, drive pinion bearing
     38128-18000 WASHER-adjusting, drive pinion bearing
     38129-18000 WASHER-adjusting, drive pinion bearing
     38130-18000 WASHER-adjusting, drive pinion bearing
     38131-18000 WASHER-adjusting, drive pinion bearing
     38132-18000 WASHER-adjusting, drive pinion bearing
     38133-18000 WASHER-adjusting, drive pinion bearing
     38134-18000 WASHER-adjusting, drive pinion bearing
     38135-18000 WASHER-adjusting, drive pinion bearing
     38136-18000 WASHER-adjusting, drive pinion bearing
     38137-18000 WASHER-adjusting, drive pinion bearing
     38138-18000 WASHER-adjusting, drive pinion bearing
     38139-18000 WASHER-adjusting, drive pinion bearing
20   as required
     38165-18000 SPACER-drive pinion bearing
     38166-18000 SPACER-drive pinion bearing
     38167-18000 SPACER-drive pinion bearing
21   38153-18000 SHIM-adjusting, drive pinion (0.05 T)
     38134-18000 SHIM-adjusting, drive pinion (0.075 T)
     38155-18000 SHIM-adjusting, drive pinion (0.125 T)
     38156-18000 SHIM-adjusting, drive pinion (0.25 T)
     38157-18000 SHIM-adjusting, drive pinion (0.5 T)
     38189-18000 SEAL-oil, drive pinion
22   38189-18000 SEAL-oil, drive pinion
23   38210-18000 ASS'Y-FLANGE, companion & dust shield
     38210-18001 ASS'Y-FLANGE, companion & dust shield <> 38210-18000
24   38215-01300 WASHER-plain
25   38216-18000 NUT-drive pinion
26   38320-18000 GASKET-gear carrier
     38320-18010 GASKET-gear carrier <> 38320-18000