3996X Traxxas Idler Gear (20T) (E-Maxx)
$7.45
8692 Traxxas Input shaft/ idler gear
$13.50
Robinson Racing 1559 Axial extra hard idler SCX10, II,
$19.98
Robinson Racing Axial SCX10/SMT10 X-Hard 48P Input Top Shaft 20T
$19.95