The CD009 comes with 90mm, 95mm or 100mm input shaft bearings, and every ASE adapter plate is cut for 100mm. Installing against a smaller bearing causes radial play that destroys the input shaft bearing and the pilot bushing adapter — here is how the included laser cut bearing rings fix it.
Step-by-step installation of the ASE CD009 to JZ adapter plate — seal installation using the pilot bushing, gasket and Permatex method, bolt lengths and torque specs, slave cylinder ordering, and J3 bell housing notching. Also clears up the long-running myths about cutting the spud and the input shaft tip.