Gearbox Oil Reco

Hi, all…
Engine and clutch refresh going well. Now I need to know what is the latest, best, preferred gearbox oil for my 4.2L '65 XKE.

Opinions will abound. I am using Redline MT90 and have been for many years, several cars.

1 Like

Using royal purple max gear in gearbox and differential . shifts smooth and guiet. Had red line and that was also good.

Plus 1 on the Redline MT90

Recent thread on gear oil
There's something better than Red Line MT90