So I have done a few gear swaps but havent on a Ford 10.5. I got new 4.30 gears from advanced 4x4 for my superduty. The front went great, and the rear was going pretty good today until I put the carrier back in. Before it was even seated all the way the pinion hit the carrier. There was a shim under the inner bearing on the pinion so I pressed the bearing back off, pulled out the shim and reinstalled the pinion and carrier and the pinion is still contacting the carrier. There are no shims on the pinion now and no shims behind the inner bearing race, so I cant move the pinion away from the carrier any further. My vin says the truck has the 10.5, the sticker on the gear box says 10.5 1999-2010, but my carrier has 10.25 stamped on it. It also had 2 large spacers on each side of the side bearings between the housing and the race. Im thinking I have the wrong gear set, or am i completely missing something. Any help would be greatly appreciated. Thanks!