At the rear of the engine on the passenger side is the filler tube and dipstick,
It has a full perimeter frame.
1966 Chevrolet Impala CONVERTIBLE
Most of them are located inside the brake drums.
You need to call a wrecking yard that has a Hollander cross reference and they can tell you.
through the transmission dipstick tube.
Type F Automatic Transmission Fluid.
It takes just regular tranny fluid.
To replace the drivers side mirror on a 1966 Impala, remove the screws with a Philips head screwdriver. Remove the mirror , there will 2 5/16" bolts retaining the baseplate.
P.S. fluid or transmission fluid
Chevrolet Impala 1962 Ford Mustang 1964 Chevy Chevelle 1966
Look in the fuse box, it's the round silver thing that plugs in.
1 quart