OEM Crankshaft Rear Main Seal - Nissan 300ZX, 350Z, 370Z, GT-R/Infiniti G35, G37, Q50, Q60

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If you have noticed oil buildup on the bottom of your transmission, especially in-between the trans and oil pan, it's most likely a bad Rear Main Seal. The perfect time to replace these is when the transmission is removed for any reason, i.e. clutch or flywheel installation. Please be aware that Nissan / Nismo / Infiniti pricing is subject to change. Show more