H190

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The Hitach 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 Datsuns, and is available with lightweight aluminium carriers and a variety of stock ratios.

Alloy

35 pound H190 center section.

• Datsun 510 Wagon
• Datsun Fairlady Roadster
• Datsun 320 pickup

Ratios

Widths

• Datsun 320 pickup: 50" in H190 diff
• Datsun V510 wagon: 53" in

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.

Ratsun contains a nice photo essay with general information.

Donor Cars

Japan

510

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