1966 c10 Fender Support Bracket help please

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I am looking for any info on the brackets and seals for the upper rear of the front fender.

Here is my pic of the part I pulled a while back that will need to be replaced along with the other fenders bracket and seal.



RocknRod from this forum had helped me track down the part on ebay that comes as a kit from the Truck Shop in Orange CA.

The kit on ebay though doesnt have the seal and comes with the upper bracket that I didnt need. Does anyone have a source for the seal? I can order the $18 bracket from the Truck Stop but when I called them they said they didnt sell the seal. Maybe the seal can be substituted for some other seal I can staple to the bracket?