NAPA Echlin #DL-6187 fits your car with tilt column.
The Autozone #SW3027 crosses to NAPA Echlin #DL6173, which fits the non-tilt column.
I just found this at Impala Bob's
They also call it a TS switch ???
Chevy Impala Parts by H.I.P. - 1963-66 STEERING COLUMN BEARING AND BUSHING LOWER W/TILT (ea)