You can fit the 16” Tacoma rims if you have the smaller calipers/rotors. The smaller calipers are stamped ‘WG’ on the inside of the caliper. You can crawl underneath and check.
My 2004 Limited has the smaller rotors, and I have a different set of 16” Tacoma rims that fit my Limited.
If you already have 16” rims, you don’t need to check.
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2004 Limited V8 4WD 183k miles. Stratosphere Mica paint, Stone interior. Too many mods to list here.