Have you looked into this thread?
https://www.toyota-4runner.org/5th-gen-t4rs/309223-trans-cooler-mount-need-kansas-5th-gens-new-product-fitment.html?highlight=iconic
Sadly I reached out to a moderator and he just said there's no solution in sight and just told me to go to the FS groups that no one seems to go to. I have a ton of stuff for sale, and was debating on starting a new thread to post stuff for sale. So frustrating!
I'm selling a brand new set of switchback LED fog light bulbs, and a spare set of Morimoto XB LED fog light housing replacement housings if anyone is interested PM me