Did a quick search for "Installation instruction" here, did not find anything relevant.
Looks like Ford has published the Installation instruction sheets for some of the Bronco accessories:
After opening the link:
1. Select model year = 2021...
Hope this has not been posted before.
For those who are interested in knowing a bit more on the technical side of the Bronco's automatic transmission, here are a series of article from Transmission Digest.
The Year of the 10-speed
Quick Peek at New Ford / GM 10 Speed