Here are a couple of pictures showing some variations on these early tail light brackets. the frist one shows one with smaller and one with larger hole for light assebly. The smallar one is the same bracket that you can buy the smallar lights from Spector for. Does anyone have any information about the larger one? I have never seen or heard of this size before. Very similar....but different. The second picture shows the larger of the two fully assembled ( i have the pair..only this one has the lense).