8 1/4 Gear Change Question

I realize what I did now. I bought a suregrip from a dakota 8.25- it looks exactly like the one in the pic above, except the right side shoulder on the carrier is a little squarer - not totally, but there is a difference. The Dakotas have a little larger bearing on the carrier, which provides an additional 1/4 inch of clearance in the spot I drew a circle around. Now I guess I need to clearance my housing just a little bit? Cause there's no way I'm buying another $200 suregrip. If I have to, I'll have the Dakota 8.25 housing cut down to fit under the Dart. I'd really rather just clearance my housing a bit, as it evidently doesn't hurt anything. What do ya'll think?

AND.. should I really have to adjust the carrier over THAT far? I have already added another shim between the pinion and the large pinion bearing, and you can tell the pattern is getting better. So should I buy some more pinon shims, or try to adjust the carrier over some more?