Can the new 75W Toyota transfer case fluid type be used in the 2009-2015 Toyota Tacoma even though the owner's manual recommends a 75W-90 GL-5?

We suggest using a fluid type that is in accordance with the originally recommended specifications. In this case, 75W-90 gear oil is recommended for use in the 2009-2015 Toyota Tacoma transfer cases and this is what should be used. We supply a super high quality 75W-90 gear oil for the 2009 - 2015 Tacoma transfer case that is a true fully synthetic gear oil based on premium PAO synthetics and will offer many performance benefits over basic off-the-shelf cheaper 75W90 gear oil brands. Using the recommended gear oil in the transfer case will minimize any unknown reliability issues.