"pop top lifting assembly bumper", well at least that's the name Van Cafe gives it.

http://www.van-cafe.com/home/van/page_1120_1121/poptop_lifting_assembly_bumper.html

alistair

On 2011-07-17, at 6:19 AM, James Felder wrote:

> I don't know what to call the almost insignificant piece of rubbery plastic that serves as a bumper for the foot of the poptop apparatus as it sits down on the bodywork on each side of the poptop opening. Black, about an inch by an inch by a quarter-inch. Slips over the end of a metal foot to keep it from marring the paint or pinching the poptop fabric. 
> 
> Thanks,
> 
> Jim