Click to expand Tap to zoom B6 T6 Hard Coated Idler Gear (39t) by DragRace Concepts $14.99 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Overview This 7075-T6 hard coated aluminum idler gear is a direct replacement for the Team Associated #91716 39t plastic idler gear used in B6 based laydown transmissions.