LINK: 863 Tab 3.25" Brown Low Friction Acetal with 2 holes .281 +/-.002 centered 2.50" across link Ref Drawing C0863U0325LFTZ+002. Drawing Located: V:\Chain\0.75 Inch Pitch\Ram Side Flexing\C0863U0325LFTZ+002. Base link part# C0863U0325LFTA is link use