I work on new cars, so this modern gear oil was free and available when I drained and refilled the old '65's granny four speed. Should I change it to old school 90w gear oil? Something about the synchros not working correctly?
It does grind sometimes in 4th if you get a little impatient with shifting, but I thought it was just the regular high mileage wear and tear.
Pic of Ol Blue: pix
[img]https://s6.postimg.cc/xd6uy3iy9/image.jpg[/img]

Last edited by shp4man; 09/03/2018 3:51 PM.