The entrance cover is CNC'd from 4140 HTSR metal to specific tolerances. The manufacturing unit apply piston on these units is thought to get a weak url on the 66RFE torque converters. You signed in with Yet another tab or window. Reload to refresh your session. You signed out in https://releazedatecars.com/comprehensive-guide-to-suncoast-transmission-everything-you-need-to-know/