Iconic Fabrication makes a number of products for the FJ and one of them, rear recovery points will bolt on the 4R so I've ordered a set of those.
They were originally sold through a now closed group buy thread on this forum.

Their other product is a great bracket for a FJ's transmission cooler which can also be purchased with a Hayden 678 or 698 cooler install kit.



FJ Cruiser Transmission Cooler Bracket Kit
– Iconic Fabrication

I asked the owner, Devon about a chance for a 5th Gen kit and all he needs is a volunteer or two to allow him to first measure up their 4R in the radiator area and then come back a month later for a fit check.

The reason I said a volunteer or two is because I don't know if there are any changes from 2010 - 2023 radiator mounting that might affect the location of holes or fitment of the cooler. So maybe someone with a 2010 and someone with a 2020 or later model could volunteer? Devon is located in Salina, about 40 miles west of Junction City, Kansas.

All I get out of this is Devon having a new 5th Gen trans cooler kit in stock for me to order. Practically speaking, that might not be until summer.

You can contact Devon directly through his web page at
Contact
– Iconic Fabrication