One more thing -- if you don't already have the updated style 1-piece rubber valve cover gasket on yours, now would be a great time to put one on. Available through Volvo dealer or in Goetze brand from multiple different parts houses.
Don't forget to make sure all your valve cover studs are screwed all the way down into the head when you have the valve cover off, or you can end up with an oil leak that won't go away no matter how much you tighten the nuts, and sometimes if a stud is partway backed out it can even deform the valve cover. Worked on one D24T where the cover was warped enough that it had to be pounded flat again. Now I check that there are no loose studs anytime I have a valve cover off...
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86 745 D24T/ZF 345k lifted 2.5"
83 764 D24T/M46 155k
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