Pro Tip: How To Assemble an ATI Harmonic Balancer

If you’ve ever called in and said: “I’m assembling my ATI balancer and it’s not going together like the instructions say…” This video is for you. In 2025 we’ve sold a TON of supercharger front accessory drive systems and ATI harmonic balancers. Along with that came real-world questions from builders trying to assemble them correctly, especially when adding supercharger pulleys. So today TJ walks through: • The tools you actually need • How to properly align the offset holes and dimples • Why the hub sometimes doesn’t “just slide together” • The freezer trick that makes assembly easier • When and where to use blue Loctite • Proper torque specs (T40 Plus + 12-point fasteners) • How to install the supercharger add-on pulley • Why these SFI-certified dampers matter at the track All of our LS supercharger front accessory drives are based on factory LSA spacing — whether you're running: • LSA • Magnuson • Whipple • Hellcat adapted to LS • CTS-V • Corvette applications If you're building boost the right way, the balancer matters. This isn’t theory. This is real-world install advice from guys who’ve assembled dozens of them. Intro - 0:00 Hub to Shell - 1:30 A/C Hub - 2:47 Supercharger Pulley - 3:57 Outro - 5:06