maybe two thirds majority.

Go back to 60% and limit judge appointments to ten years with a minimum age of 55. A judge could be re-appointed for a second ten- year term by Congress, but no more than two terms.

Even two-thirds would be better.

The system is weak for as long as the appointments are dominated by political considerations.
Ideally, a committee made up of senior justices should elect one of their number to be a justice of the supreme court, subject to ratification by the existing supreme court justices .... and then have to be NOT DISAPPROVED (note the subtle difference!) by more than 33% of the senate. (in other words abstaining is tacit approval.)

Just go back to 60 and I would be happy, but, definitely 60 to 75.

at least 60% - but 75 would work !

Yes!

yes, I believe so that would make it much less partisan.

It would seem to me that scraping out 51% of the senate to elect someone who is to appointed for life isn't fair to the other 49% of the population.After all this person is supposed to represent all of the public not just 51%.Getting a vote of 75% seems more reasonable. Second , who wants 80 year old plus judges representing them. I am 80 years old and I know how hard it is to maintain focus. I would think 70 would be a better age to retire these judges. After all I believe the FBI must retire some where in their 50's??Both changes are needed now!