These spacers came along with the Willwood brake kit that I installed, these spacers were not required & thus have not only not been used, but have only been out of the bag for the pictures. Prices for these range from $15-$25 each (plus shipping) depending on the source. $25 to https://www.paypal.me/rocketdog
will get you the pair, shipped to your home in the lower 48 states.
Willwood's description; "Wheel Spacer and Hub Protector. With a wheel bolt circle of 5 x 4.50”/4.75”/5.00” and a 5mm (0.197’) thickness. Engineered from high strength steel alloy and with a plated finish."
IMG_0180 by Richard Velardo, on Flickr
IMG_0179 by Richard Velardo, on Flickr