Long story short, I'm replacing the wheel cylinders on rear drums, and I ordered two Wagner wheel cylinders. I received one, but the second one is on back order until January. That's not going to work with my schedule. I'd like to get this job done on Saturday, which is 4 days from now. Do I need to stick with the same brand on each side? The specs say same bore size, for what it's worth. I could get another Wagner brand here in 9 days ($20). I could get parts-store brand now ($20) or get a Raybestos or Beck Arnley from Amazon for $15-16 in a couple of days. Your thoughts appreciated.