Hitachi H165 differentials uses a 165mm (6.5") ring gear. One was fitted to Datsun 1200 Sunny Trucks (B120). Early (H165 pre-1973), H165B Type I (1973-1979) and H165B Type II (from July 1979). The gear sets do not interchange between the various Types.
Contents |
Identification
H165 has 8-stud removable center. H150 and H190 are also 8-bolt. H145 is 8-stud.
New Type uses M11 bolts to fasten the ring gear, all others use M10 bolts.
H165 has rectangular flange. H150 is round.
flange
H165 Chassis ID code is HC
Flange
H145: scalloped flange, bolt hole rectangle 36 x 50 mm
H150: 45 x 54 mm round or rectangular flange
H165: 45 x 54 mm round or rectangular flange
There are some differences between flanges on H165's, some long (~217.5mm from carrier mounting face to driveshaft flange face), some short (~202.5mm). Depth of hole for centering boss varies also.
H190: 50 x 60 mm, round or rectangular
Size
H145 measures 145mm H150 measures 150mm H165 measures 165mm H190 measures 190mm
Pre-1980
B10: H145, 3.900 VB10: H145, 4.375 (van/wagon) B20: H145, 4.375 S.T.D. / 4.625 Optional (ute/pick-up) B110: H145 3.900 VB110: H145 4.111 (van/wagon) PB110: H165 4.111 B120: H165 4.111 (ute/truck) B210 1974: H145 3.900 B210 1975-up: H150 3.700 or 3.889 PB210: H165 GB211: H165 B310: H150 various A10: H165 various
1980-up
Axle Codes H = Hitachi removable gear carrier (pumpkin/centre section) HA - H145 (145mm diameter ring gear, 5.709 inch) HB - H150 (150mm diameter ring gear, 5.906 inch) HC - H165 (165mm diameter ring gear, 6.496 inch) HD - H190 (190mm diameter ring gear, 7.480 inch) ALUMINUM CARRIER HE - H190 CAST IRON CARRIER HF - H190A revised for strength
EXAMPLE: HF38 = H190 with 3.889 ratio was factory fitted
Axle code is on Chassis Identification plate 1980-on, in the engine compartment. Starting in mid-80s, Axle Code is on door-jamb sticker.
Factory LSD has a sticker on the back of the diff housing.
Counting
To verify the ratio in the vehicle matches the original equipment (or build tag), you may count turns of the wheel vs turns of the driveshaft. If slightly less than 4 turns of the driveshaft results in one turn of the wheels, it is a 3.9 ratio. If it takes a bit more than 4 turns, it is a 4.111 ratio.
Even better is to note the stamped numbers on the ring gear. For example, this unit is stamped 39:11
39 divided by 11 = 3.545 ratio
Pinion gear is similarly stamped
Overview
H165 from Datsun 1200 ute
upload
Datsun Competition (later Nismo) used to sell various ratios:
- H165B Type I (to 6/79): 3.545, 3.7, 3.9, 4.111, 4.375, 4.625, 4.875
- H165B Type II (from 7/79): 3.364, 3.545, 3.7, 3.9, 4.111, 4.375, 4.625, 4.875
Available from production vehicles: 3.7, 3.9, 4.111 & 4.875 reference: diff ratios
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). For example: 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
Pit Road carries the H165 part (LSD Nismo P/N 38420-RS110). [DatRats] also has been known to carry the 1200 ute stuff.
Ratios
H165 is available in:
3.364 3.545 3.700 3.900 4.111 4.375 4.625 4.875
Types
H165 uses different gearsets depending on which version is it:
Type I Namiha (old type) - last used 1979 * includes both H165 and H165B (low tooth) types * For Gear Carrier 38310-N5000 * N5 gearset numbers
Type II Takaha (high-tooth) - used 1979-1986 * high-tooth H165B * For Gear Carrier 38310-W8500 * W gearset numbers
New Type - first used in 1986 * M11 bolts for ring gear (others use M10 bolts) * Same Gear Carrier as Type II * G3 gearset numbers
Type I 38100-N5000 3.700 38100-N5100 3.889 38100-N5200 4.111 38100-N5300 4.375 38100-N5400 4.625 38100-N5505 4.875
Type II 38100-W8500 3.154 38100-W8600 3.364 38100-W8700 3.545 38100-W8800 3.700 38100-W8900 3.889 38100-W9000 4.111 38100-W9100 4.375 38100-W9200 4.625 38100-W9300 4.875
New Type (M11 holes) 38100-G3100 3.700 38100-G3200 3.889 38100-G3300 4.111 38100-G3400 4.375 38100-G3500 4.625 38100-G3600 4.875
Bolt-drive Gear 38102-11S00 M11 $2.57 USD 38102-W8500 M10 $2.57 USD
Strength
H150 vs H165
Datsun 1200 Factory H165
B120
Datsun B120 (1200 Sunny Truck) gear sets - H165 (HC41) H165 * 38100-28500 4.111 HYPOID GEAR & PINION SET (37/9) (to '72-12) H165B Type I carrier * 38100-N5200 4.111 HYPOID GEAR & PINION SET (37/9) (from '73-1 to 7906) H165B Type II carriers * 38100-W9000 4.111 GEAR SET-FINAL DRIVE 7907-8605 * 38100-G3300 4.111 GEAR SET-FINAL DRIVE 8605-
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-
PB110
PB110 axle housings are basically the same as the 1200 Truck, but have the correct minor differences for either Sedan or Coupe.
38100-29000 HYPOID GEAR & PINION SET (35/9=3.889) 38310-A6100 GEAR CARRIER COMP 38423-28500 GEAR-side, diff bevel
Sedan 43010-H2800 CASE COMP.-rear axle (up to '72-11) 43010-H2851 CASE COMP.-rear axle (from '72-11) > 43010-H2800 Coupe 43010-H2500 CASE COMP.-rear axle (up to '72-11) 43010-H2551 CASE COMP.-rear axle (from '72-11) > 43010-H2500 * Also sold by Nissan Competition. See H165 Conversion Listing
Gasket
Center section gasket for H165 carrier.
- 38320-N5000AS Gasket-carrier $4.27 USD
- supersedes 38320-04110 GASKET-GEAR CARRIER H165
8-stud: H145 8-bolt: H165, H150 9-bolt: Borg Warner 78 (locally assembled Datsun) 10-bolt: H190
38320 GASKET-GEAR CARRIER H145 38320-18010 GASKET-GEAR CARRIER $1.70 USD H150 38320-H5001 Gasket-carrier $4.43 USD H165 38320-04110 GASKET-GEAR CARRIER H165 H190 38320-B3002 Gasket-cover $4.13 USD
For more details, see main article: Diff Gasket
Alloy Carrier
The advantage of an alloy diff is in the reduced unsprung mass, which is particularly important in a light car like a 1200.
Rare alloy H165 carrier - from 1967 Datsun 510 Bluebird (Series 1) Australia
Australia report: P410 & P411 Datsun Bluebirds & possibly even P310. These are pre 1600 models sold in the 1963 - '65 period. & are H165 diffs
Empty shell: Alloy 5.5 lb, Iron: 14.5 lb
USA Datsun Roadster - 1500 SP310, 3.88 ratio, 23 spline side gears
Nismo
Also see: LSD#H165
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 II)
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.
pThey 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
Swaps
Swapping an H165 into a 1200 can be great to match larger engine swaps. Sometime H165 is fitted because LSDs are more available for the H165 than for the H145 or H150.
Also see: Diff Widths
The best swap candidate for Datsun 1200 is the H165 assembly from a Datsun 1200 Truck (B120). But they are not direct bolt-ins, as the spring mounts, shock mounts and brake lines/cables are slightly different. Some minor fabrication is needed.
Likewise for Datsun 510 axle swaps.
For example, sedans need a shock bracket welded to the axle housing, which coupe housings and ute housings lack.
Datsun A10 axle is only 2 inches wider, so use positive offset (FWD) wheels to make up the difference. A10 has 4-link mounts, unless you get the wagon version which is leaf sprung.
Datsun S110 is 4-link, which brackets can be ground off and leaf pads added.
S110, direct swap for B310 axle
Donor Cars
Available from production vehicles: 3.3, 3.5, 3.7, 3.9, 4.1, 4.4, & 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
* A10 Stanza/HL510 (1978-1981): 3.700 and 3.875 * 180B (610) wagon: 3.889:1 * Bluebird 910 sedan: 3.889:1 and 3.700 (wagons used H190) * 200B (810) wagon 4.111 earliest versions before they switched to Borg Warner * Series 3 Bluebird wagon (910): 3.889:1 * Bluebird series 1 (L20B engine) * Bluebird series 2 (L20B engine)
C120 Vanette
3.889 V.SB.LD20 4.111 LD20 4.375 V.A15 4.875 T.A15, Z20 4.625 A15 5.143 A12
Japan
Namiha M10 Takaha M10 New Type M11
410
410 = C1 engine (998cc) P410 = E1 engine (1189cc)
38320-04100 GASKET-gear carrier ALL 38100-04100 SET-GEAR, hypoid (41T:8T=5.125) S 38100-04101 SET-GEAR, hypoid (37T:8T=4.625) P,DF,L,N,DN 38100-08300 SET-GEAR, hypoid (35T:8T=4.375) * U,LU,UN,LUN,WU,WLU,WUL,WLUN & 4 speed. SS 38100-09600 SET-GEAR, hypoid (37T:9T=4.111) (op) 4 speed. SS
S = Standard D = Deluxe F = Fancy N = automatic clutch L- = left hand drive -L = handling package? R = 2-door sedan SS = Sport Sedan SS-R = 2-dr Sport Sedan U = export W = Wagon C1 = 2-bbl carb E1 = 2-bbl Hitachi DAB-308-7 E1 = 2-bbl Nikki 2D-30CE <> 2D-30CE-2 Pedal clutch E1 = 2-bbl Nikki Pedal clutch E1 = 2-bbl Nikki 2D-30CF <> 2D-30CF-2 Automatic clutch -K = SS = Twin Carburetor Hitachi HJE38W-1
SS = E1 (1200) Twin Carb SSS = 411 R16 Twin Carb SS = 411 J13 Twin Carb
411
411 J13 used H165 411 J16 used H190 P411 = J13 38320-04100 GASKET-gear carrier 1.3 <> 38320-04110 38100-13201 SET-GEAR, hypoid (35T:8T) 1.3l (except P-P) 38100-17901 SET-GEAR, hypoid (37T:8T) P-P [LPG] 38100-14301 SET-GEAR, hypoid (37T:9T) (op.) SS
PB110
L14-powered B110.
38100-29000 HYPOID GEAR & PINION SET (35/9=3.889) 38300-A6100 GEAR CARRIER ASS'Y (35/9) 38310-A6100 GEAR CARRIER COMP 38102-28500 BOLT-drive gear (8)
PB210
L14-powered B210.
38300-N5100 FINAL DRIVE ASS'Y (35/9=3.889) <> 38300-N5101 38300-N5101 FINAL DRIVE ASS'Y (35/9=3.889) (from '73-10) 38300-N5300 FINAL DRIVE ASS'Y (35/8=4.375) L14T 38100-N5100 GEAR SET-hypoid (35/9) 38100-N5300 GEAR SET-hypoid (35/8) 38310-N5000 GEAR CARRIER COMP 38102-28500 BOLT-drive gear (8)
GB211
GB211 is L16-powered B210.
38300-N5000 FINAL DRIVE ASSY (37/10=3.700) MT 38300-N5100 FINAL DRIVE ASSY (35/9=3.889) AT 38100-N5000 GEAR SET-FINAL DRIVE (37/10=3.700) MT 38100-N5100 GEAR SET-FINAL DRIVE (35/9=3.889) AT 38310-N5000 GEAR CARRIER COMP 38102-28500 BOLT-drive gear (8)
H165
3.700 38100-N5000 3.889 38100-N5100 4.111 38100-N5200 4.375 38100-N5300 4.625 38100-N5400 4.875 38100-N5505
PB110 3.889 PB210 3.889, 4.111, 4.375
H165B
Namiha
GB211 3.700, 3.889 JP710(7306-)/JP711 3.889, 4.111 PA10 3.700 PA11(-7906) 3.700, 3.889 P810 3.889 PJ811 3.889, 4.111 S10/S11/PS110(-7906) 3.700, 3.889 C210/PC210 4.111, 3.889 C211(-7906) 4.111, 3.889 PC120(-8006) A12,A14 4.111, 4.375, 4.625, 4.875, 5.143
Takaha M10
PA11(7907-)/RA11(7907-) 3.700, 3.889 PJ910 3.889, 4.111 YJ910 3.889 PS110(7907-) 3.700, 3.889 JS12 MT 3.700, 3.889 PC211(7907-) 4.111, 3.889 FJR30 CA18S 3.700 FJR30 Z18 3.889 JF30 3.900, 4.111 PJC31 3.889 SJC31 4.111 PC120(8006-) A12,A14 4.111, 4.375, 4.625, 4.875, 5.143 C22 A15 4.375, 4.625, 4.875 3.154 38100-W8500
3.364 38100-W8600
3.545 38100-W8700 39/11 910 8401-8601 5F
3.700 38100-W8800 37/10 910 8210-8312 C31 8011- R30 8210- S110 7906- Z20E S12 8308-8605
3.900 38100-W8900 35/9 910 7910-8605 C120 7907- C31 8011-8210 R30 8108-8210 S110 7907- Z18 S110 8105- Z18E
4.111 38100-W9000 B120/B121 7907-8605 910 7910-8605 C120 7907- C31 8011- F30 8009- S12 8308-8602
4.375 38100-W9100 35/8 C22 8509-8605
4.625 38100-W9200 37/8 C120 7907-
4.875 38100-W9300 39/8 C22 8509-8605 M10 RING GEAR BOLT C120 7907-
New Type
M11 bolts
3.700 38100-G3100 M11 9508- (4WD.5P+4WD.7P).SR20DE W10 9010-9301 4WD.GA16DS +4WD.SR20DE W10 9301-9508 4WD.GA16DS +4WD.SR20DE W10 9508- 4WD.GA16DS +4WD.SR20DE +SR20DET 910 8802- S12 8605-
3.889 38100-G3200 910 8605 MT
4.111 38100-G3300 B120 8605- 910 8605- AT 910 8907- MT
4.375 38100-G3400 C22 8605- TC22 8811- T.SB.A15S.MT +A15S.AT
4.625 38100-G3500 C22 8711- C22 8711- V.A15
4.875 38100-G3600 C22 8605- TC22 8811- A12S
North America
1500 Roadster
Datsun Fairlady 1500 roadster used an H165 diff. The 1600 and 2000 used a H190.
- 38100-10400 SET-GEAR, hypoid drive (35 : 9) [3.889] SP310/SPL310
- 38423-04101 GEAR-side, differential bevel (2)
410/411
1964-1965 PL410 = E1 engine (1200, 1189cc) 1966-1967 PL411 = J13 engine (1300) RL411 (R16 engine) uses H190
38100-13201 (35/8=4.375) 3-speed OPTION 38100-13225 [4.625?] 3-speed 38100-14301 (37/9=4.111) 4-speed OPTION 38100-14325 4-speed
610
1973 model year 610 Wagons came with a leaf-sprung rigid axles with H165 differential.
NOTE: 1974 and up used H190
38310-A6100 ASSY-CARRIER -0373 38310-N5000 ASSY-CARRIER 0473- 38310-N5000 ASSY-CARRIER AUTO 0873-
38100-29000 SET-HIPOID GEAR & PINION (35/9) -0373 38100-N5100 SET-HYPOID GEAR & PINION, 35/9 0473-0773 38100-N5100 SET-HYPOID GEAR & PINION, 35/9 (AUTO) 0873-0874
710
710 from 4/73 (TYPE I)
38100-N5100 SET-HYPOID GEAR & PINION, 35/9, 3.889 MANUAL -0874 WAGON 38100-N5000 SET-HYPOID GEAR & PINION, 37/10, 3.700 MANUAL 0974- WAGON 38100-N5200 SET-HYPOID GEAR & PINION, 37/9, 3.700 AUTO -0874 WAGON 38100-N5100 SET-HYPOID GEAR & PINION, 35/9, 3.889 AUTO 0974- WAGON
Sedan & Coupe 38100-29000 SET_HYPOID GEAR & PINION, 35/9, 3.889 MANUAL -0373 38100-N5100 SET-HYPOID GEAR & PINION, 35/9, 3.889 MANUAL 0473-0874 38100-N5000 SET-HYPOID GEAR & PINION, 37/10, 3.700 MANUAL 0974- 38100-28500 SET_HYPOID GEAR & PINION, 37/9, 3.700 AUTO -0373 38100-N5200 SET-HYPOID GEAR & PINION, 37/9, 3.700 AUTO 0473-0874 38100-N5100 SET-HYPOID GEAR & PINION, 35/9, 3.889 AUTO 0974-
38320-04110 GASKET-GEAR CARRIER
S10
1977-1978 Datsun 200SX TYPE I
38100-N5100 HYPOID SET-GEAR & PINION (35/9), 3.889 MANUAL 38100-N5000 HYPOID SET-GEAR & PINION (37/10), 3.700 AUTO
A10
1978-1981 Datsun 510 1979 3.545 1980 CAN 3.545 1980-1982 USA 3.364 1981-1982 CAN 3.367
to 6/79 TYPE I from 7/79 TYPE II
- 38100-N4905 HYPOID GEAR & PINION SET, 3.545 -0579
- 38100-W8700 HYPOID GEAR & PINION SET, 3.545 -0679
- 38300-W8600 FINAL DRIVE ASSY, 3.364 USA 0779-
- 38300-W8700 FINAL DRIVE ASSY, 3.545 CANADA 0779-0680
- 38300-W8600 FINAL DRIVE ASSY, 3.364 CANADA 0780-
These are very similar to the setup in the Datsun B310 (Sunny/210) and so are good swap donor for the Sunny. They come in 4-link for the sedan/coupe, same as Sunny sedan/coupe and all North America Datsun 210s.
S110
1979-1982 Datsun 200SX to 6/81
North American models were fitted with H190 starting in 7/81
H165 models
* 38100-W8800 GEAR SET-FINAL, 3.700 0179- Z20E+Z22E * 38100-W8800 GEAR SET-FINAL, 3.700 0880- Z22E.MT * 38100-W8900 GEAR SET-FINAL, 3.898 0880- Z22E.AT
Parts
Bearings
Also see: Axle Shaft for the rear wheel bearings
Differential
38440-61501 BEARING ASS'Y-diff side (2) $49 USD * also used by S110 H165 * SKF BR30207 $30 USD
SKF BR30207 specifications Tapered Bearing Cup & Cone Set * I. D. mm 35 mm (1.378") * O. D. mm 72 mm (2.835") * Width mm 18.26mm (0.719")
Pinion Rear Support
38120-13201 BEARING ASS'Y-pinion rear $120 USD * also used by: rear B12 front 720,D21/D21U/WD21,D22U/WD22,S110,R50,S130/Z31 * SKF BR32306 $17
SKF BR32306 specifications Tapered Bearing Cup & Cone Set * I. D. 30 mm (1.181") * O. D. 72 mm (2.835") * Width 28.75 mm (1.132")
Pinion Front Support
38140-13201 BEARING ASS'Y-pinion front $82 USD * also used by: front 720,D21/D21U/WD21,M10/M11,910,B12,S110,S12,S130 * SKF BR32305 $36 USD
SKF BR32305 specifications Tapered Bearing Cup & Cone Set * I. D. 25 mm (0.984") * O. D. 62 mm (2.441") * Width 24.25mm (0.994")
Side Gear
H165 38423-28500 GEAR-side, diff bevel * 610.WAGON/710, A10, B120, S10/S110 38423-10600 GEAR-SIDE DIFF * 38423-10600 is superseded by 38423-28500 * 411.J13 38423-04101 GEAR-side, differential bevel * SPL310
H190 38425-00100 GEAR-PINION * SPL311 38423-14600 GEAR-SET HYP * 411.R16
H150 38425-G0300 PINION-mate diff bevel
Part Sources
Bearings are available from Nissan, or from bearing supply companies