Substitution aluminum upright through set #350909. Aluminum straight back uprights are specially made for GT program and show the suspension system system system geometry ideal for both nitro and electric GT. The aluminum uprights offer increased protection on-/off-power and further mounting with set screw for repaid play. Machined from premium Swiss 7075 T6 aluminum the uprights may also be better and many other things dependable than standard composite people. Set of 1. Fits left and right part.