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Jatco 3 Speed Leak From Pinion Gear?


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Yes all 3N71A, 3N71B, F4W71A, F4W71B, FS5W71B in all 240/260/280z used them.




Both of the following are very commonly used on Datsun and Nissan transmissions manuals and automatics..


There is an oil seal 32709-14600 (bottom left) and it is in EVERY speedometer pinion manual or automatic until the early 2000s.


The 510 O ring 32710-14600 (bottom right) is on every pinion manual or automatic all the way up to the '96 300zx



The O ring is easy, take it to NAPA or any auto parts or hydraulic parts dealer and they will find you one. The oil seal, just pull any speedometer pinion apart and pull one of of it.



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