the w series was behind the fuel injected motors g series in the carbed motors.do the test in all gears listen carefully.the s***er bushings are accessable after you take the cup off the shigter houshing.there is cup holding the s***er lever in the housing,push down and turn and it will pop up.It is spring loaded.Then the shifter will comne right out.no gaskets or seals involved.guarantee the bushings are cracked and crumbled.