a set of polyurethane bushings for a g-body is 75 bucks from summit, and if you are removing the OEM arms, boxing them and installing new bushings, id stick with PU.. that way you can recover the cost if you you remove them and sell them on ebay once marcus is ready to ship... especially if you paint the arms prior to installation
http://store.summitracing.com/partde...5&autoview=sku