Ordered Wheel Cylinders for deVille

I ordered 2 wheel cylinders(one right rear, one left rear) for the '67 deVille today, Maybe they will get there by this weekend...I ordered from Rock Auto, they had the raybestos versions for $27.79 ea. + 7.90 shiping - $2.90 discount w/coupon vs. $45.99 ea. at Kragen (who also does not have them in stock).