Audi 2.6 2.8 V6 2 Valve Engine Camshaft Alignment Lock Kit TDC pin 2.6L 2.8L NOTE: tool works ONLY with AUDI 1991-1997 V6 2-valve engines. It is NOT applicable to any 5-valve en ENGINE CODE AAH,ABC Steel anodized camshaft alignment fixture - interfaces with cam gears to securing and maintaining TD when the cam belt is serviced or removed for other front-engine or cylinder head service tasks. J shaped clamp for securing the camshaft alignment fixture