first time post, 6 lug question

[steveo70]

Hi all, I originally owned a BBC Sierra Grande in the 80's while in high school. 30 years later it has not gotten out of my system. I recently bought a 1969 long bed big block truck from my wife's uncle, I am currently searching for some factory wheel/dog dish caps. I recently found some wheels on Craigslist --"Set of 4, 15 x 6, 6 lug white Chevy steel wheels, Originally on an 86 K5 Blazer" on craigslist. does anyone know if they will fit on a 1969 drum brake 6 lug truck and accept dog dish caps. Thank you in advance. I love the community spirit here on this site. Everyone could use more of this helpful and positive attitude in our everyday lives