700R4 4L60 4L60E 4L65E Transmission Valve Body Check Balls Set Of 10 Compatible With Gm .250′

These Check Balls Are Made Out Of Tough, Wear Resistant Imidized Plastic. Made In The Usa. These Seal Better Than Steel Balls Because They Conform To The Separator Plate Ball Seats. Steel Check Balls Are Hard And Heavy, Wearing Separator Plate Ball Seats From The Repeated High Impact Of The Ball On The Seat.