68-70 Tandem, dual resevoir master cylinder Brake Brace. Comes with grade 8 U.S. made hardware for mounting (not pictured) and instructions. Prevents firewall from cracking by redistributing the load or can be used after firewall is cracked to support the structure. Machined formed precise laser cutting methods. See part# 1716 for 67 1/2 version as they are different.

Note: the second pic is of the part installed (click on pic to see it at the right resolution)