The Superlift component box for 2016–2020 Toyota Tacoma includes cross members intended for 4.5–6in lift kit installations, supplied as the chassis support pieces called out in the product description. It is offered to match Superlift’s lift ranges for these Tacomas and provides the specific cross-member components identified for those lift heights.
Superlift 16-20 Toyota Tacoma Component Box - Cross Members 4.5-6in Lift Kit