Parts list: № Number Qty Name Options 1 T22535 1 Shaft TACHOMETER 2A AT25185 1 CAMSHAFT (MARKED T20464 OR T20468) WITH TACHOMETER DRIVE GEAR (SUB R82821 AND R81514) 2B R82821 1 Camshaft 3 T28041 1 Shaft Key 4 T20072 1 Plate 5 19H2676 2 Cap Screw 3/8" X 1" 6 T20070 1 Helical Gear (48 TEETH) 7 R81514 1 Gear Next page: 0402-2 ROCKER ARM COVER (ENGINE SERIAL NO. 459478-621172) (MANUFACTURED 1978-1983) (ENGINE SERIAL NO. 100001- ) (MANUFACTURED 1983- ) [01E25] 0402-3 TIMING GEAR COVER [01F01] 0402-4 ROCKER ARM SHAFT, PUSH RODS AND ROCKER ARMS [01F02]