Brake line: 8.75 vs 8.25

I have a '75 Dart Sport with an 8.75 rear. The previous owner completely removed the lines on the rear end, as well as all the interior drum components. The brass T is still there, as well as the lines coming from the front, they just plugged the T with two brass bolts/plugs .

Now, I found a complete brake setup on Inline Tubes, but the axle lines are for an 8.25. I contacted their support and was told they think the 8.25 and 8.75 rear end brake lines are the same. Before I purchase, can anyone confirm that?

Thanks!