Here’s a neat tool from BD Diesel Performance! The M8 Stud Install Tool is now included with the company’s Ford 6.7L Exhaust Manifold Kits, and sold separately if needed. With this, there’s no need to double nut to install manifold studs anymore. This handy little tool quickly mounts onto M8x1.25 studs and speeds up the time it takes to tighten and torque down. Use a 3/4-inch or 19mm wrench plus a 7/32-inch Allen kit to install or remove it. For more information, call 800-887-5030 or visit www.bddiesel.com.
Photo credited to BDDiesel.com