Dreaded clunk when turning

In the manual it says the Drive gear bolts are left hand. But what is the drive gear? That big gear? I was hesitant to remove the whole carrier for fear of messing up the measurements that the manual shows. But are you guys saying that if I undo the 2 bolts on each of the bearing caps, that then the entire carrier along with that big gear will simply slide out? Another question is, the kit I bought from Motive has a thread bolt/pin. It does not have a roll pin. Does this mean I would have to reuse my pin shaft and find a new roll pin?? Or os this kit not going to work? I did check the axle shaft into the new side gears and they fit. I am very close to just returning the parts and taking a trip to Wine Country (Temecula) and grabbing the whole thing. But i Need to borrow a truck for that.