RE Rear brake line question

So im putting on the RE extended SS brake lines... front was easy but the rear is kinda weird? The OEM one has a radius on the axle side of the distribution block but the RE one if flat? is this correct? Im worried with no sealing washer it will leak diff fluid... or am I missing something here? Thanks for any input.

Just bolt it down. Mine has been fine for 2+ years.

no washer at all?

X2 What srmichell said except I have only been running mine for about 700 miles.

I also had the same concern but it proved to be a non-issue.

My biggest issue was stopping the brake fluid leaking at the connection to the hard line. Third try finally got it.

Thanks guys!