Abstract: A mechanism for opening and closing a large one piece rectangular overhead gate includes vertical jamb members on each side of the gate, horizontal track members located near the top of each side of the gate, track rollers fastened to the gate and carried on the track members, kicker wheel brackets attached to each jamb member each including a main pivot, an upper spring mounting member above the pivot, spring arm members fastened to said pivots and a kicker wheel mounted above the upper spring mounting member, a lower spring mounting member near the lower end of each jamb member, coil springs attached between upper and lower spring mounting members and an electric motor attached to the top of the gate to raise and lower the gate.