61 to 64 Chevy Impala convertible rear 1/4 glass and controls are the same for manual or power windows.
62 -64 Impala 2 door hardtop rear 1/4 windows are the same ( they are larger than convertible glass frames and window glass)
62 -64 impala 2 door hardtop rear 1/4 glass power window controls ( and manual controls) will not fit or work on 61-64 convertibles.
61 to 64 Impala 2 door hardtop and 61 to 64 Impala convertible door glass controls are “all the same for manual and power windows”
you need 3 power window wiring harnesses, rubber power window boots for the doors and door jambs plus a 4 gang drivers door control and 3 single switch controls for pass door and both rear 1/4 glass.
You also need a circuit breaker (mounted on the kick panel) and wiring to firewall and to the starter to supply power to the run the power windows.
There are oval knockouts in the door jambs and doors to run wire from the doors to the drivers kick panel circuit breaker.
On all convertibles 61 to 64 the rear 1/4 glass power window switches mount on the rear arm rests next to the rear ash trays (61 & 62-64 impala 2 door hardtop rear 1/4 power window switches mount to the side panel at the same location as the the manual window cranks.
Paul