ANTI-RATTLER KIT, Window, includes 21508, 21452, 21453, 21546 for both doors, 21452/53 have black beads
Manufacturer Reference #'s: WFK 2111 67, C7TZ-8121460-
Worked very well, easy to install in my '70 -f100. Very pleased with the results.
Submited on June 22, 2020 by Adam K.
YES I would recommend this product.