DSCF4159.jpg 374 hits | 70.68 KB | Posted: 10/30/11 Long wide pinion yoke. All 1968 390 and 427 applications used driveshaft P/N C8WY-4602-B with C6 automatic transmissions. The shaft is 3" diameter, Length is 49 41/64" center / center of u joints (Posted in: 9" axle details)