How long do you let your Permatex cure before refill?
I just changed the diff fluid in a D44 and I'm anxious to refill it. When I've done it before, I've used the red stuff and let it sit overnight. This time I used the Ultra black, and I need the truck tomorrow morning. So, do I fill it tonight or get up early tomorrow? Package says it takes 24 hrs for a full cure, but that's merely a suggestion, right? Thanks!
I use the gray Mopar Gear Lube RTV. It's specifically designed for use with gear lube, and can be applied even if you don't clean the old fluid off of the mating surfaces. I let it set up for about 20 minutes, although I don't think it's necessary.
I have always waited about an hour, and have never had a problem with leaks. But in reality, you prob can basically fill it right away/within a few minutes. If you were to take it to a mechanic, they would put the cover back on and fill it right away because they dont have time to waste waiting around for it to dry. So if they can do it that quick and not have leaks, you can too!