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| = Widths = | = Widths = | ||
| * Datsun 320 pickup: 50" in H190 diff | * Datsun 320 pickup: 50" in H190 diff | ||
| - | * Datsun V510 wagon: 53" in | + | * Datsun V510 wagon: 1335mm between wheel mounting faces with drums fitted |
| * Unknown Vanette: 1430 mm drum-to-drum | * Unknown Vanette: 1430 mm drum-to-drum | ||
Current revision
The Hitachi H190 differential has a 190mm (7.49 inch) ring gear and can handle about 285 lb. ft. of torque, making it suitable for larger V6 or drag racing supercharged 1200s. H190 is the strongest live axle Hitachi fitted to Datsun cars (C200 from pickups is larger), and is available with lightweight aluminium carriers and a variety of stock ratios.
Contents |
Overview
H190 differential can handle the torque from 6-cylinder turbo motors and small V8s.
H190 in Datsun 1200 coupe
H190 alloy 42kg H165 steel 34kg
H190 is very much bigger and stronger than H165.
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
Measure the gear
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
Gasket
Center section gasket for H190 carrier.
Nissan 38320-B3002 Gasket-cover $4.13 USD
H190: 10-bolt gasket
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
35 pound H190 center section.
- Datsun 510 Wagon
- Datsun Fairlady Roadster
- Datsun 320 pickup
- Datsun 521 pickup
- Datsun 620 truck (early)
- C120 Vanette light duty
Gazelle S12 rear axle assembly -- when fitted with alloy carrier -- weighs only 4kg more than H165 with cast iron.
Alloy Pumpkin (center section)
Ratios
The complete center section (gear carrier with gears installed) will interchange with other H190 housings.
Note that fitting different gearsets to a particular carrier (center section) may require special spacers. There are Type A,B and C gearsets each a different dimension. Spacers are available from Nissan.
To install a 4.375, 4.625 or 5.125 ring and pinion into a third member equipped with a 3.700, 3.889 or 4.111 ring and pinion a 4.0mm/.157" ring gear spacer must be fabricated. Due to a smaller pinion shaft, the 4.875 and 5.874 ring an [sic] and pinion sets are interchangeable, but cannot be installed into third members equipped with other ratios. 1984 Nissan Competition Catalog pg 58
3.364 38100-P0806
3.545 39/11 38100-P0706,38100-V7700
3.700 37/10 38100-77700,38100-A3800,38100-P0606/38100-P0607,38100-V7600
3.889 35/9 38100-61000,38100-A5300,38100-25600
38100-P0501/38100-P0506,38100-V7500
3.900 39/10 Not available (3.889 is quieter)
4.111 37/9 38100-61001,38100-P0306,38100-V7300
4.375 35/8 38100-37800/38100-22501/38100-23500,38100-26000
38100-B3300,38100-B5500,38100-P0206
4.625 37/8 38100-36800/38100-22600,38100-22901,38100-77500,38100-P0106,38100-C6200
4.875 39/8 38100-14901/38100-20600,38100-20659,38100-Y4006
5.125 41/8 38100-37000
5.143 41/8 [5.125] 38100-08700,38100-37000,38100-B4003
5.429 38100-T3003
Applied Model Codes
Applied Model Codes used by H190 gearsets 087 320/L320 146 SP311 [1600] 149 L520 206 L520('67) 225 W510 [510 wagon] 226 W510-A 229 V510 [510 van] 235 256 SPL311 259 SR311 [2000 Roadster] 260 368 G31 370 31 378 LH31 610 775 ?Y130 777 Y130 A38 ?510 A53 WP510 B33 ?PL521 B35 ?PL521 B40 A321 C62 P01 230-HK,230-H ('71) P02 230-V ('71) P03 230-Q ('71) P05 N230-S ('71) P06 P07 Q230 ('71) P08 V230 ('71) T30 V73 V75 V76 V77 Y40
LSD
See main article: LSD
Widths
- Datsun 320 pickup: 50" in H190 diff
- Datsun V510 wagon: 1335mm between wheel mounting faces with drums fitted
- Unknown Vanette: 1430 mm drum-to-drum
Gearset weight is approximately 8 pounds.
Vanette alloy H190 compared to H165
H165 Comparo
H190 is much beefier than H165.
* H165 28-spline 34kg * H190 28-spline 42kg (alloy carrier)
Axles are very much stronger
Swap Notes
Several Datsun owners have swapped an H190 into the Datsun 1200s. The Datsun 320 pickup rear axle is one inch narrower than the Datsun 1200 unit.
The S110 units can be used in B110, grind off the 4-link brackets and weld leaf-plates. Narrow the axle housing or use overfender flares.
Ratsun contains a nice photo essay with general information.
NOTE:
- There are at least four carrier types, which can only fit specific gear ratios
- There are various incompatible axle types/side gears, so swapping center sections doesn't always work
Datsun 1200
Datsun B310
H190 from 1982-1983 S110 has disc brakes and is a direct bolt-in for a B310 axle.
H190 from 1984 S110 is also a bolt-in but has drum brakes and is a bit wider (about 2").
Prop Shaft Length
Also see: Flange Bolt Pattern
Since H190 is larger than the 1200 units, the driveshaft needs to be a couple of inches shorter.
H190 flange length (320 shown). Later units are 8mm longer
Side Gears
When swapping diff carriers assembled (pumpkin), you may swap the side gears to match your axles.
- 13-spline, #Datsun 320 pickup
-
- 23-spline, 510 wagon and most cars
-
- 29-spline, S110 and pickups
-
USA SOURCES
38423-00100 GEAR-SIDE [13 spline] * Datsun 320 "1200" Pickup 1962-1965
38423-10600 * 411 with 1.3 engine
38423-16300 * Roadster/Sports (Option)
38423-14600 GEAR-SIDE [23 spline] * Roadster/Sports non-Option SPL311/SRL311 "1600/2000" * 411 with 1.6 engine * 510 wagon * 810 wagon * 910 "810/Maxima" wagon
38423-73000 GEAR-SIDE [29 spline] formerly 38423-61000 * S110 "200SX" 1982-1983 * S12 "200SX" 1984 with CA20E * 520/521 * 620 * 720 some
38423-B4000 * D22U "Frontier" 1998-2000 KA.2WD(-KC) H190 * GC22 "Nissan Van" 1989 C200 * 720 some * D21 some * D21U some * WD21 some
Datsun 320
Several Datsun owners have swapped an H190 into their Datsun 1200s. The 1962-1965 Datsun 320 pickup rear axle is one inch narrower than the Datsun 1200 unit (44 inches across between brake backing plates).
Nissan Competition
1984 Nissan Competition catalog.
S110
The ring and pinion sets listed will fit the 200SX/S110 (from 7/81).
38100-P0806 3.364 38100-P0706 3.545 38100-P0606 3.700 38100-P0506 3.900 38100-P0306 4.111 38100-P0206 4.375 38100-P0106 4.625 38100-Y4006 4.875 38100-B4003 5.143 38100-T3003 5.429
620/720
H190 RING & PINION SETS (FROM 5/76)
[Same as S110 ratios above]
Roadster
H190 RING & PINION SETS
To install a 4.375, 4.625 or 5.125 ring and pinion into a third member equipped with a 3.700, 3.889 or 4.111 ring and pinion a 4.0mm/.157" ring gear spacer must be fabricated. Due to a smaller pinion shaft the 4.875 and 5.874 ring an pinion sts are interchangeable, but cannot be installed into third members equipped with other ratios.
[normal carriers] 38100-77700 3.700 R&P SET 38100-A5300 3.889 R&P SET 38100-25900 4.111 R&P SET
[high ratio carriers] 38100-26000 4.375 R&P SET 38100-77500 4.625 R&P SET 38100-37000 5.125 R&P SET
[special carriers] [1978 catalog note: must be used in a 520 pick up case] 38100-20600 4.875 R&P SET 38100-19901 5.874 R&P SET
Donor Cars
H190 Rear Axle Assembly came in many, many Datsun/Nissans:
VANS * 1985-1988 Nissan C120 Vanette C120.A12 truck * 1979-1988 C120 Vanette A14,A15 except coach * 1979-1988 C120 Vanette LD20,LD20T,Z20
PASSENGER CARS * 1966-1967 411 Bluebird * 1968-1970 S311 Fairlady/Sports Roadster * 1968-1972 510 Bluebird wagon and all non-IRS * 1973-1977 610 Bluebird/160U wagon and all non-IRS * 1982-1983 late S110 Silvia/Gazelle/200SX * 1977-1980 810 Bluebird/Maxima wagon * 1981-1984 910 Bluebird/Maxima wagon
PICKUP TRUCKS * 1963-1965 320 Truck * 1967-1972 520/521 Truck * 1973-1979 620 Truck * 1980-1986 720 Truck * 1986-1997 Nissan D21/Navara (gasoline 4-cyl) * 1997-2015 Nissan D22/Navara (2WD 4cyl except King Cab)
Australia
3.900 910 Series 2 Bluebird 29 spline (CA20 engine) 910 Bluebird Wagon (sedans used H165) 3.889 S12 Gazelle AT 3.700 S12 Gazelle MT 4.111 C20 with Z20 engine MT 4.3 C20 with Z20 engine AT 4.111 Vannete 29 spline 1600 Wagon 23 spline Roadster 23 spline 4.6 early Navara (later ones use Borg Warner) 6.5 diesel truck 320 520 521 620 some 720 some
NOTE: 27 spline axles are only used in 4 pinion works centre LSDs.
Japan
411
NOTE: P411 (J13) used H165
R411 = R16 38320-25660 GASKET-gear carrier 1.6 38100-61000 SET-GEAR, hypoid (35T:9T=3.889) 1.6l 38100-61001 SET-GEAR, hypoid (37T:9T=4.111) (op.) 1.6l
LSD
38420-A9980 3.70-4.11, 4.875-5.874
38420-16330 4.375, 4.625, 5.125
38420-B3400
Differential Assembly * 38420-N9000 4-pinion 720 8004-8303 4-pinion S110 8204- HE41.FJ20 * 38420-41W00 2-pinion 720 8004-8303 2-pinion 720 8303-
320
1962-1965 "Datsun 1200" 320 Pickup 38100-08700 5.14 gearset
510
1967-1972 Datsun 510 wagons and vans came with a leaf-sprung rigid axles with H190 differential.
W510 Wagon V510-S Standard Van V510 Deluxe Van
Catalog C-091 38310-14800 COMP.-CARRIER, gear V&W 38100-22901 SET-GEAR, hypoid (37 T:8 T) [4.625] Van 38100-22600 SET-GEAR, hypoid (37 T:8 T) [4.625] Van 38100-22501 SET-GEAR, hypoid (35 T:8 T) [4.375] Wagon [W510] 38100-23500 SET-GEAR, hypoid (35 T:8 T) [4.375] Wagon
C120
Vanette#C120 2nd-generation
Also see H165
A14/A15 Vanette Coach uses H165 A12 Van uses H165 A12 Truck.CT uses H165 -8508 A12 Truck.DX uses H190 A12 Truck uses H190 8508-
H190AL (HD) * A12 TRUCK.A12.DX(-8508) * A14 T.A14(-8105) + Van.A14(7907-8105) * A15 V.A15 + T.SB.A15.DX (8106-8508) * A15 T.LB.A15.DX (8106-8210)
H190ML (HE) * A12 T.A12.DX(8508-) * A15 T.LB.A15.CV * A15 T.LB.A15.DX(8210-) * A15 V.A15(8508-) * Z20 * LD20 + LD20T
38100-B3000 HD51 36/7=5.143 38100-B3100 HD48 39/8=4.875 38100-B3201 HD46 37/8=4.625 38100-B3300 HD43 35/8=4.375
38100-P0206 HE43 35/8=4.375 38100-P0306 HE41 37/9=4.111 38100-V7300 HE41 37/9=4.111 38100-P0506 HE38 35/9=3.889 38100-V7500 HE38 35/9=3.889 38100-P0606 HE37 37/10=3.700 38100-V7600 HE37 37/10=3.700
SP311/SR311
Fairlady Roadster SR = 2000 SP = 1600 38100-61000 SET-GEAR, hypoid drive (35:9) SR [3.889] 38100-61001 SET-GEAR, hypoid drive (37:9) SP [4.111] 38100-14901 SET-GEAR, hypoid drive (39:8) (op.) SR [4.875] 38100-37000 SET-GEAR, hypoid drive (41:8) (op.) SR [5.125] 38100-77700 SET-GEAR, hypoid drive (37:10)(op.) SR [3.700] 38100-37800 SET-GEAR, hypoid drive (35:8) (op.) SR [4.375] 38100-36800 SET-GEAR, hypoid drive (37:8) (op.) SR [4.625]
North America
USA and Canada
Datsun SPL311/SRL311 "Roadster/Sports" Datsun 410/411 Datsun 510 Wagon Datsun 320 Pickup Datsun 520 Pickup Datsun 610 Wagon 1974-1977 Datsun 620 Pickup Datsun 720 Pickup Datsun S110 "200SX" from 1982-1983 (disk brakes) Nissan S12 "200SX" 1984 (drum brakes) Datsun 810 wagon Datsun 910 wagon "810" Nissan D21/D21U pickup Nissan D22 pickup
320
Datsun 320 pickup uses a rear axles 50" in width with H190 diff -- narrower than a stock Datsun 1200 rear axle, making this a low-cost swap for high-power engines. But it uses 6-lug axles.
4.875 NL320 & NL320
The 320 differential assembly uses 13 spline axles, so if swapping in a different pumpkin, swap the side gears too.
520
J13 Gearset was 39:8 (4.875) 38100-20659 SET-GEAR,HYPOID (39:8) * superceded 38100-14901 & 38100-14900 38100-20600 SET-GEAR,HYPOID (39:8)
521 with L16 Gearset was 4.375 38100-B5500 SET GEAR HYPOID (35:8) * superceded 38100-23500 38100-B3300 SET GEAR HYPOID (35:8)
Roadster
SPL311 = 1.6 SR16 engine SRL311 = 2.0 U20 engine 38100-61000 RING & PINION 1.6L [1600] [3.889] 38100-61001 SP311-U/SPL311 OP. [1600] [4.111] 37/9 38100-25600 GEAR & PINION 1.6L [1600] [3.889] 35/9 38100-A5300 GEAR-SET HYP 1.6L [1600] 38100-77700 RING & PINION 2L [2000] [3.700]
411
NOTE: 410 and 411.J13 used H165
1966-1967 R411 = R16 (3.889) 38100-A5300 GEAR-SET HYP 1.6L 411 411 OPTION 35:9 38100-14401 SET-GEAR,HYPOID(35T: OP.UT,LUT,WUT,WL UT 38100-61000 RING & PINION 1.6L 411 38100-25600 RING & PINION 1.6L 411
510
510 Wagons came with a leaf-sprung rigid axles with H190 differential.
1967-1973 Datsun 510 (Bluebird)
38310-14600 CASE-CARRIER,GEAR -1171 38310-A3000 CASE-CARRIER,GEAR 1271- 38100-61000 SET-GEAR PINION 35/9 [3.889] WPLA WPZ WPZA WPX WPXA 38100-A5300 SET-GEAR PINION 0770-1171 * superceded 38100-25600 SET-GEAR PINION 35/9 [3.889] -0670 38100-P0501 SET-GEAR PINION 35/9 [3.889] 1271- 38100-A3800 SET-GEAR PINION 37/10 [3.700] WAGON FLOOR SHIFT 1271-
610
610 wagon 1974-1977 H190 leaf spring rear axle. 610 wagon 1973 came with H165 610 Sedan & Hardtop came with IRS R160
38100-P0501 35/9 [3.889] 4-speed 1974 38100-A3800 37/10 [3.700] 4-speed 1975-& AUTO 1974-
620
Datsun 620 pickup USA came stock with these ratios:
-0576 38100-B3300 35/8 MT 38100-B3201 37/8 AT * supercedes 38100-B3200
0576- 38100-P0101 37/8 -0775 AT * superceded 38100-P0100 38100-P0206 35/8 0578- AT 38100-P0206 35/8 -0778 OP.MT(EXC CAMPER) 38100-P0206 35/8 0778- CAMPER 38100-P0306 37/9 0778- MT(EXC CAMPER) 38100-P0206 35/8 0578-0678 MT 38100-P0230 35/8 -0748 MT * supercedes 38100-P0200 38100-P0200 35/8 MT 38100-P0230 35/8 0875-0478 AT
720
Datsun 620 pickup USA came stock with these H190 ratios:
NOTE: From 0183, 4WD often used C200 diff
38100-C6200 4.625 0784- 2WD.HD/W.Z24
38100-P0106 37/8=4.625 0679-0680 T.LONG.4WD.L20B
38100-P0206 35/8=4.375 0679-0680 (L20B+Z22+Z24).AT + HD/T
0679-0680 T.REG.4WD +K/CAB.4WD
1182- 2WD.HD/W.Z24
0780-1282 T.LONG.4WD.Z22
0780-1282 4WD +HD/T
38100-P0306 37/9=4.111 0679-0680 L20B.AT
0679-0680 T.LONG.L20B.2WD
0780-1082 T.LONG.Z22.2WD
0780-1082 Z22.AT
38100-P0501 35/9=3.889 0183- 2WD.SD25
0979- (T.REG+K/CAB).L20B.2WD.MT
0780-1282 (T.REG+K/CAB).Z22.2WD.MT
38100-P0506 35/9=3.889 0783- 2WD.AT.Z24
0183-0683 4WD.Z24
38100-P0607 37/10=3.70
38100-P0606 37/10=3.70 0783- 2WD.(T+K/CAB).Z24.MT.F5
1182-0683 2WD.AT.Z24
38100-P0706 3.545 1182-0683 2WD.(T+K/CAB).Z24
38100-P0806 3.364 0183- 2WD.Z20
S110
Datsun S110 "200SX" from 1982-1983 (disk brakes)
NOTE: 1980-1981 uses H165
38100-P0607 <> 38100-P0606 38100-P0606 37/10=3.70 0781- Z22E.AT 38100-P0706 39/11=3.54 0781- Z22E.MT
S12
Nissan S12 "200SX" 1984 (1083-1184) w/CA20E engine (drum brakes)
38100-P0506 35/9=3.889 1083-1184 CA20E.AT 38100-P0606 37/10=3.70 1083-1184 CA20E.MT
810 Wagon
810 USA debuted 0876
38100-A3800 37/10=3.70 0876-1177 38100-P0601 1277-0478 38100-P0606 37/10=3.70 0578-1279
910 Wagon
910 USA (Datsun 810/Datsun Maxima/Nissan Maxima) debuted 0180
38100-P0606 37/10=3.70 0782- W.LD28 38100-P0606 37/10=3.70 0782- W.L24E.AT 38100-P0706 39/11=3.54 0780- W.L24E.MT.F5 38100-P0706 39/11=3.54 0780-0682 W.L24E.AT 38100-P0806 3.364 0780-0682 W.LD28
D21
D21 (1185-0894) "Harbody" pickup used H190, C200, CA200, OR H233 * Only gasoline 4-cylinder used H190 or H190A * Z24.2WD (Z24.4WD used C200/CA200) * KA24E.2WD (KA24E.4WD used H233 or C200/CA200)
Z24.2WD - M10 RING GEAR BOLTS 38100-P0506 35/9=3.889 1185-1285 Z24.(AT.F4+AT.R4) 38100-P0607 37/10=3.70 1185-0186 2WD.Z24.MT.F5 +Z24.MT.F4
Z24.2WD - M12 RING GEAR BOLTS (F/LSD) 38100-V7500 35/9=3.889 0787-0889 *Z24.(AT.F4+AT.R4) 38100-V7500 35/9=3.889 1285-0889 (AT.F4+AT.R4) 38100-V7600 37/10=3.70 0787-0192 *2WD.Z24.M5.F5 +*Z24.MT.F4 38100-V7600 37/10=3.70 0186-0192 2WD.Z24.M5.F5 +Z24.MT.F4
KA24E.2WD - M12 RING GEAR BOLTS 38100-V7600 37/10=3.70 0787-0894 KA24E.AT.(R4+F4) 38100-V7700 39/11=3.54 0889-0894 KA24E.MT.F5
D21U
D21U (0894-0897) * KA24E engine H190, H200 (King Cab), or H233 (4WD) * VG30 engine used H233
KA24E 2WD except King Cab 38100-V7300 37/9=4.111 0196-0996 AT 38100-V7600 37/10=3.70 0894-0196 AT 38100-V7700 39/11=3.54 0996-0897 MT
D22U
D22U (0997-) "Frontier" pickup 2WD w/KA24DE DOHC engine 1998-2000 except King Cab * D22U with VG33E used C200 or C233 * KA24DE.2WD used H190 1998-2000 except King Cab * KA24DE 2001- used C200 or C233 * All King Cab used C200 or C233 * All 4WD used C200 or C233
38100-V7500 35/9=3.889 0997-0700 2WD.KA24DE.T.AT 38100-V7600 37/10=3.70 0997-0898 2WD.KA24DE.KC.MT 38100-V7700 39/11=3.54 0997-0499 2WD.KA24DE.MT