 Shares of Paccar Inc. PCAR, 0.26 shed 0.8 in premarket trading Tuesday, after the truck maker reported a surprise decline in third-quarter profit but revenue that rose above forecasts, as the semiconductor shortage reduced deliveries by more than 17. Net income fell to 377.7 million, or 1.08 a share, from 385.5 million, or 1.11 a share, in the year-ago period. 