Good grease...used it for windows when putting in new regulators as Don suggests in his video

A must have to grease both your new and existing window pieces. You can also get this at the local auto parts store if need be.

Lube For Window Tracks And New Regulator

This lube worked great and was easy to apply to the window tracks and new regulator. I lubed the old tracks 30 years ago with white lithium grease and it had hardened over the years so I had to scrub to clean the tracks before re-installing. I read on Mustang forums not to use white lithium grease for the window tracks and regulators due to the fact lithium grease hardens over time so I was looking for an alternative. This worked great.

window track lube

Great item. Makes windows slide without any noise. Perfect.