Datsun 5 speed manual transmission FS5C71B Factory Service Manual Data
Year and Model, Gear Ratios, Oil and Capacity and Speedometer Drive Pinion Gear
Images of FS5C71B for Identification purposes with Service Data and Specification
I created these images also from the Nissan Motor Corp. Factory Service Manuals, they have the gear ratios and teeth count for each gear. OK gear heads, lets see some mathematical calculations. I apologize for the images, some where photo copied. I am a Datsun 240z guy, and have forked out some serious $$$ for hard copies. Feel free to send me your Hard Copy FSM, I will digitize them properly.
I Thank You, for your efforts to keep this knowledge available to the masses for free. FSM manuals came from Xenon### (changed website name to XenonZcar.com) and https://www.classiczcars.com.
1980 FSM Wide Ratio Tail Housing, but it has Close Ratio gears.
Now here is a problem, possibly a misprint. I need some input on this guys. I did notice researching the differentials, that Nissan went back to installing the R180 in the 1979 280ZX, they switched to the R200 in 1975 280z. I believe they were using up the last of the R180s they had. Maybe in this year, they upgraded the gear ratios to the “Close Ratio” but used up the last of the rear tail housings for the “Wide Ratio”. The bolt pattern looks the same, but some bolts are longer because it is a different casting. Not sure.