8.25 Dakota Gear Swap Wont Fit.

Its 8.25. The bearings will no doubt need changed but I cant figure out why the carrier in rubbing. It has small teeth around the perimeter of the carrier that rub the housing. The actual gear seems fine and all numbers point me to an 8.25. Need a different carrier I guess. Must be something a little different about this one. Pinion and pinion bearing fits fine.

I have seen some Dakota NOS Sure Grip carriers listed on eBay really cheap but they said they wouldn't fit the earlier 8 1/4. If this was just the bearing difference I have no idea and I am just posting what I have read in the past.