powershift04

Hey guys how are you, my name is Oscar new to the site. I have a 2004 SL500 and I recently purchased the SL600AMG Caliper front and rear. For the front I drilled the mounting holes to fit the front calipers and trimmed the dust shield a little bit. Now for the rear, they told me its a direct fitment, or bolt on. I went to install it and does not line up to the calipers and the caliper is pitched side ways.... Any ideas guys. the other Idea I had was to replace knuckles but I am not sure if it will interfere with anything else and as far as axles go???? thanks guys.