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Transmission leaking from driver side axle input shaft seal
The likely cause of the leak isn't necessarily the seal itself, but rather the differential bearings loosening up and causing unwanted play. If you can feel any side to side (not in , out) play in the drive shaft where it goes into the transmission, then replacing the seal isn't going to do you any good. You need to replace and re-shim the diff. bearings. This issue is very well documented on here. Do a quick search to find more information before you replace the seal and wind up with the same leak.
As the 4th gen ages, its owners get younger.
Hey join the club! Mine just started leaking a couple weeks ago. Although mine was caused from the amazing mechanics at my local Nissan dealership not replacing the axle seals when they installed a new clutch. For your piece of mind, mine has been leaking for at least 2-3 weeks and the transmission fluid level is still full.
Seems like a pretty easy job, I got quoted something like 160$ for the dealership to do it on one side. Don't know if I'm going to buy to 'seal puller' and attempt this myself or just take it in.
If you decide to do it, make sure you don't scratch the inside casing where the seal sits when you pull the seal. That could be a way for the fluid to leak through the outer edge of the seal because the scratch kind of give the oil a pathway. ?? Not sure but better to be safe than sorry.
I dont care about doing the seal job, I just don't want to crack open the tranny to do the diff bearing job. Ive long viewed the tranny as a big scary monster. lol