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{{ImportedFrom|site=Xenonzcar|title=XenonZcar.com Z31 Differential Specifications and Variations|url=http://www.xenonzcar.com/z31/differentialinfo.html|archive=https://dev.z31library.com/xenonzcar_archive/z31/differentialinfo.html|fetched=2026-05-15}}
{{ImportedFrom|site=Xenonzcar|title=XenonZcar.com Z31 Differential Specifications and Variations|url=https://z31library.com/xenonzcar_archive/z31/differentialinfo.html|archive=https://z31library.com/xenonzcar_archive/z31/differentialinfo.html|fetched=2026-05-15}}


![](images/Differential/Diff.jpg)
https://z31library.com/xenonzcar_archive/z31/images/Differential/Diff.jpg


![](images/Differential/Diff.jpg)
https://z31library.com/xenonzcar_archive/z31/images/Differential/Diff.jpg


There were 11 different differentials offered in the Z31. They are all R200 models Made by Hitachi I think? The differences are as follows:
There were 11 different differentials offered in the Z31. They are all R200 models Made by Hitachi I think? The differences are as follows:
Line 37: Line 37:
There were two different Yokes that were used on the Z31 models depending on years. Early Models had a rectangular flange and bolt pattern and the Late models had a circular flange with a square bolt pattern.
There were two different Yokes that were used on the Z31 models depending on years. Early Models had a rectangular flange and bolt pattern and the Late models had a circular flange with a square bolt pattern.


![](images/Differential/Diff-flanges.jpg)
https://z31library.com/xenonzcar_archive/z31/images/Differential/Diff-flanges.jpg


=== Diff Fluid Recommendations USDM: ===
=== Diff Fluid Recommendations USDM: ===
Line 69: Line 69:
=== Sources used on this page: ===
=== Sources used on this page: ===


[http://www.xenonzcar.com/z31/FSM.html 1984-1989 Nissan 300ZX USDM Factory Service Manual][http://www.xenonzcar.com/z31/FSM.html EURO Market Nissan 300ZX Factory Service Manual]- 1984 Nissan Fairlady Z Product Brochure
* [https://z31library.com/xenonzcar_archive/z31/FSM.html 1984-1989 Nissan 300ZX USDM Factory Service Manual]
* [https://z31library.com/xenonzcar_archive/z31/FSM.html EURO Market Nissan 300ZX Factory Service Manual]- 1984 Nissan Fairlady Z Product Brochure
* 1987 Nissan Fairlady Z Product Brochure
* 1987 Nissan Fairlady Z Product Brochure


[[Category:Imported from Xenonzcar]]
[[Category:Imported from Xenonzcar]]

Latest revision as of 22:54, 20 October 2026

Imported page. This page was converted from an archived copy of "XenonZcar.com Z31 Differential Specifications and Variations" (Xenonzcar, fetched 2026-05-15). The conversion was mechanical, so tables, links and formatting may contain conversion artefacts. Compare against the archived copy if something looks wrong. The content belongs to its original authors.

Diff.jpg

Diff.jpg

There were 11 different differentials offered in the Z31. They are all R200 models Made by Hitachi I think? The differences are as follows:

  • USDM 300zx 84-87 NA = R200 3.700:1 open 37 tooth Ring gear 10 tooth Pinion
  • USDM 300zx 88-89 NA = R200 3.900:1 open 39 tooth Ring gear 10 tooth Pinion
  • USDM 300zx 84-86 T and JDM 84-89 T= R200 3.545:1 open 39 tooth Ring gear 11 tooth Pinion
  • USDM 300zx 87-89 T = R200 3.700:1 clutch LSD * 37 tooth Ring gear 10 tooth Pinion
  • USDM 300zx 88SS = R200 3.700:1 viscous LSD ** 37 tooth Ring gear 10 tooth Pinion
  • EURO 300ZX Turbo Sold in Europe = R200 3.364:1 open 37 tooth Ring gear 11 tooth Pinion - 4 spider gears
  • EURO 300ZX Non Turbo Sold in Europe = R200 3.700:1 open 37 tooth Ring gear 10 tooth Pinion - 2 spider gears
  • EURO 300ZX Turbo Sold in the Europe = R200 3.545:1 open 39 tooth Ring gear 11 tooth Pinion - 4 Spider gears
  • EURO 300ZX Turbo Sold in the Middle East = R200 3.545:1 open 39 tooth Ring gear 11 tooth Pinion - 4 Spider gears
  • EURO 300ZX Non Turbo Sold in the Middle East= R200 3.700:1 open 37 tooth Ring gear 10 tooth Pinion - 4 Spider Gears
  • EURO 300ZX Turbo Sold Else where = R200 3.545:1 open 39 tooth Ring gear 11 tooth Pinion - 2 Spider gears
  • EURO 300ZX Non Turbo Sold Else where = R200 3.700:1 open 37 tooth Ring gear 10 tooth Pinion - 4 Spider gears
  • JDM 300zx Manual = R200 3.545:1 open 39 tooth Ring gear 11 tooth Pinion - 2 Spider gears
  • JDM 200Z ZS ZG Manual and Auto = R200 4.111:1 open 37 tooth Ring gear 9 tooth Pinion - 2 spider gears
  • JDM 200ZR Manual = R200 4.375:1 viscous LSD 35 tooth Ring gear 8 tooth Pinion - 4 spider gears
  • JDM 200ZR Auto = R200 4.625:1 viscous LSD 37 tooth Ring gear 8 tooth Pinion - 4 spider gears
  • JDM 300ZR Manual and Auto = R200 4.111:1 clutch LSD - 37 tooth Ring gear - 9 tooth Pinion - 4 spider gears

USDM Cars only *Only 87 Turbo cars made after 04/87 had a LSD. Before this, they were open differentials. Canada did not get a LSD until the 88 model year.

USDM Cars only ** Only available in the 1988 Shiro model

On the Limited slip differentials a finned rear cover was added from the factory. This is a usual dead giveaway of a LSD in a Z31 in the USDM.

EURO market cars Sold in Europe had an external Differential Oil Cooler installed. This Consisted of an Electric pump, Oil Cooler, and lines as well as a Temperature switch.

Driveshaft Yoke/Flange[edit]

There were two different Yokes that were used on the Z31 models depending on years. Early Models had a rectangular flange and bolt pattern and the Late models had a circular flange with a square bolt pattern.

Diff-flanges.jpg

Diff Fluid Recommendations USDM:[edit]

  • R200 - 3-7/8 pt.
  • Open diff: API GL-5
  • Clutch diff: API GL-5 and SAE 80W-90 approved for Nissan LSD
  • Viscous LSD: API GL-5 and SAE 80W-90

Diff Fluid Recommendations EURO:[edit]

Location of Sale | Oil Capacity - Liters ( IMP PT) | Oil Type | Europe | 2.1 (3 3/4) | API GL-5 | Middle East | 1.8 (3 1/8) | API GL-5 | Other | 1.3 (2 1/4) | API GL-5 |

Sources used on this page:[edit]