I figured I'd start a new post for the rest of my D1 axle swap into my 110 for my question on drive flanges. I'm swapping out a drum Sals with a 94 D1 rear disc axle. I bought new rotors pads and TF HD flanges to match what i had on old axles and my front flanges. When I unbolted D1 stock flange, was surprised to see the axle attached? How do you you use HD flanges when the axle shaft is attached to the old one? Thanks for any insight here.