Dude, 90 ft/lbs. too tight is as bad as not tight enough. I always OCD about having everything torqued down properly.
As far a locktite I think you good right away. When I put my spacers on last weekend I jumped in my jeep as soon as I was done and took it for a 20 miles trip to work and 20 mile back within like 3-4hrs. I took one wheel off to check if the spacers were still tight, and it was all good. Then the following day o took it for a 200 mile trip to the off-road park, wheeled all day and drove 200 miles back. I haven't checked them since. I am assuming it's all good.
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