Hello Nissan Pathfinder Community!
I am the proud 4th owner of a 1991 SE-V6 with an auto transmission with only 85k miles.
The truck was incredibly well maintained by the previous owner.
The only issue with her is that there is a slow rear main leak. I got a few quotes from shops near me but my friend and I have decided to tackle it ourselves.
That being said, I want to get this post out there and pick all of your brains about this job, especially those of you who have done it before!
I already picked up a transmission jack on facebook marketplace and we've got all the regular automotive tools... Are there any other unique or proprietary tools we will need? We've got the Haynes repair manual for the truck so we have a pretty good idea of the process for pulling the transmission and another friend of mine is doing a manual swap on his gen 1 so we were able to connect with him and pick his brain about pulling the auto and get a visual on his Pathfinder with the transmission out which was really helpful.
OEM Nissan rear main seal part number appears to be 12279-AD205. (12279-AD205 - Seal 1984-2010 Nissan | Official Nissan Parts Store) Can anyone confirm this is correct and are there any other parts we will need for this job specifically?
Would you recommend an OEM seal or has anyone had luck with aftermarket parts on Ebay or elsewhere? There appears to be some complete kits out there with other components. By the looks of it, the seal itself and then the triangular shaped paper gasket for the top of the bell housing:
Victor Reinz JV538 Engine Rear Main Seal & Gasket Set for Z32 300ZX 12279-AD205 | eBay
Fel-pro BS40628 Engine Crankshaft Rear Main Gasket Seal Kit | eBay
While we have the transmission pulled, what other components should we swap that will be easily accessible or require minimal extra work to replace, specifically wear components or other seals/gaskets? We've got all of labor day weekend set aside for this so the more we can knock out in one transmission removal, the better.
While the transmission is out, we are planning to put a cooler in since we will be draining the fluid and disconnecting the lines...which ATF cooler kit would you recommend and what ATF fluid should we put in?
Any tips, tricks, or recommendations for tackling this? Any other helpful notes, pictures, or information you can lend?
Thanks in advance and looking forward to everyone's input!
