I need help in finding Older TRW L2404F-30 piston. Need one piston only.(hydro cylinder damaging piston & rod). Newer SpeedPro pistons sold as TRW's are too light gram wt. . Trying to avoid buying new pistons and rebalance. as engine only has 5000 miles on it. Any help would be greatly appreciated. Would prefer new. but used in good condition will work. Thanks Joe