Just finished rebuilding the rear end on my 260 and need to know what type of gear oil is needed, also manual transmission. Any help is appreciated.

Look through the redlineoil.com site. They have some excellent products, several which are almost standards for Nissan gearboxes and differentials. I used the MT-90 in my 240's later 5-speed gearbox and immediately noticed an improvement in the dreaded "second gear cold crunchiness" by changing the gear oil alone- with no other existing problems, and not even the tiniest bit of metal on the magnet plug. (knocking on wood. )

I have not researched their diff lubes though, but they do have some knowledgeable people on their hotline, so I would definitely give them a call on for their advice. I believe that the advantages of Red Line- or any oil for that matter- are not huge, but I have found it is noticeable, and well-respected enough around here, IMHO. And no, I have no connection to this or any other product connected to these cars in any manner.

Good luck.

Thank You very much, I will look into it. Been working on this car for almost 15 months and almost there.