Have to replace upper right balljoint in 58 Plymouth. Inner tire treads were wearing out. Have friend helping me got upper balljoint and a-arm freed up today. Still have to unscrew it tbough to remove it. Need socket. Where can I get and what size is it? I found ball joints…they seem to be readily available but the a-arm bushings are not…that I can find as of yet…Anyone know where I can find one? My friend said if only you could find a whole new upper a-arm with balljoint installed and with 2 new bushings but I told him they are probably not available. Any help would be greatly appreciated.