which doors, which adapter or OEM speaker box, and which new speakers.
I'm kind of assuming you mean some threeways in the rear doors sit to high which then don't fit under the door panel.
im my experience lexus fits their door speaker covers a bit closer to the speaker face than toyota does. Largely though, the OEM adaptors on all the doors is the same, regarding the 3 bolt adaptor OEM brackets/adaptors/boxes.
metra does have adaptors that have a smaller riser portion than the OEM items, but that does decrease the available mount depth.
which speaker, which doors? If its the tweeter in a coax that hits, find a flat one.
I could also be way off in what you're talking about.
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