81-87 body side molding

[75C10]

I have picked up a nice 81 GMC that has the lower chrome molding. Around the taillights area the chrome molding just wraps around under the light and aligns with the tail gate chrome. There is no aluminum corner molding like there is on my 86.

GM brochures from 1981 shows there may have been early models that did not have the aluminum corner molding and wrapped the chrome around the corner under the tail light.

Can somebody confirm there were some early production trucks that did not have the aluminum corner molding and just wrapped the stick on chrome around the corner?

I think K Seymour would know this for sure.

Thanks
Darwin