Dan,
I've been researching the same questions when I ran across your Post. Don't know if you ever received any answers elsewhere but believe I may have some.
Question 1: The Front and Rear Winders/Cranks are not the same.
Question 2: For your car, C4AB-7630323-C is the correct Door Window Crank; C4SB-6330323-B is the correct Quarter Window Crank.
Based on what I found, my car has a 23A estimated build date, your Front Window Crank, C4AB-7630323-C and door opener are the clip-on style used up to around March 1965; that could vary. The Quarter Window Crank, C4SB-6630323-B uses an Allen Head Set Screw, also used up to around March 1965. All of the Handles are somewhat thin in design.
After that through the 1967 Model Year, the Front Window Crank, C5ZB-6523348-B was held on by a screw as were the Door Handles and the Handles were wider with a couple of recesses along their length's; the Quarter Windows were still fastened with an Allen Head Set Screw and had the same design as the others to match.
I could not find anything on C4DB-6223342-D.
Lastly, Door Handle C5ZB-6522614-A is not correct for your car, the correct number that I found is C3AB-6222614-D and is what I have on my car.
Hope this helps...I'm not the expert, so someone else may correct me if I've made an error.
Take care...Ray.
