[Ahdmeyer]

have not really looked at my toppers, i used to have a american coach revolution 2007 going thru texas i passed a semi and the whole awning freewheeled. got to the side of the road and it was very windy, was able to Macgyver the awning back in by backrolling and secured it using baleing wire and ducttape. when i got home to mi took it apart and found out the only thing to keep it from doing this was a flat spot on the white metal capon the end it had rounded it out and the suction passing the semi let it free wheel. just like you said i would have had to buy the complete motor assembly to get the end cap. the othe side was a dummy cap the same, i flopped them and drilled and inserted a roll pin. not sure if this would work on the toppers but i am going to look at mine to see. best of luck