Differential Specifications and Variations

There were 5 different differentials offered in the Z31. They are all R200 models Made by Hitachi i think? The differences are as follows:

• 84-87 NA = R200 3.700:1 open 37 tooth Ring gear 10 tooth Pinion
• 88-89 NA = R200 3.900:1 open 39 tooth Ring gear 10 tooth Pinion
• 84-86 T = R200 3.545:1 open 39 tooth Ring gear 11 tooth Pinion
• 87-89 T = R200 3.700:1 clutch LSD * 37 tooth Ring gear 10 tooth Pinion
• 88SS = R200 3.700:1 viscous LSD ** 37 tooth Ring gear 10 tooth Pinion

*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.

** Only available in the 1988 Shiro model

Diff Fluid Recommendations:

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

Sources Used on This Page: 1984-1988 Nissan 300ZX Factory Service Manual, Nissan Fast software, Steve from Courtesy Nissan