lockers

So I picked up an entire front diff/axle off of an Adventure packaged I5 from Rascole a while back. It's finally about to be installed, but I have a couple of things I want to verify before I accidentally tell my shop the wrong thing... I understand that Adventure packaged I5's come with a cast...

I purchased my 2009 Hummer H3 three summers ago. It’s silver, sun roof, has both lockers and a 5.3 liter. I added nerf bars, navigation, backup camera and OEM off-road lights.