As performance levels increase, an O.E. style flexplate just won't cut it and a stronger option is a necessity to prevent transmission and/or converter failure. RTS has you covered with our high performance flexplate designed for transmissions internally or externally balanced. The assembly is then zinc plated and treated with a chromate conversion coating for added corrosion resistance and durability. 168 Tooth Ring Gear For use on Internally Balanced Chevy V8 Engines Zinc Dichromate Plated Finish Features 4L60E and TH350 Converter Bolt Patterns