Drive flange? The flat plate that caps the shaft from the birf? If so, there are two lengths,
You can text a picture to me of what you want showing how far the center of the flange sticks out. The flange is $38.28 with nuts and cone washers and shipping. What year is your Cruiser and do you know if your birfs are the long or short ones. If not I can tell by looking at the flange center from a side view. My text number is 626 590-4728.