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There are shims under the two tangs on the t-tops that go into the center bar.
Add or remove shims to correct the heights
One thing to keep in mind is that they are not supposed to be flush, seems to me the AIM says they should be slightly higher than the rear arc, something like 1/16-or 1/8, quite a bit but that's what it said.
I can check the exact amount or do a search, seems to me I found it online also
Mooser
Mine were not flush before my WS R/R.
I had to adjust & redajust & remove some shims after the WS install.
Also, when you loosen the bolts you can kind of tilt the T so make sure when you retighten, you have them aligned & square to each other.
I do have a question, what is the halo, the interior center piece where the dome light mounts?