HELP !! Diff fitting !! or not...

[Andy_B]

Morning all...been out in the garage trying to fit my diff...eventually got it up into rough position ...drivers side aligned perfectly and bolted up...passanger side is out by about 12mm on the large side..ie diff is 12mm wider ...now i cant ease the holes on the chassis as the diff is smak on center where it is with a nice equal gap both sides...so do i cut the chassis mount off and re fabricate...or can i loose some beef from the top of the diff ...bottom bit is ok as it needs 12mm worth of spacers to pack it out ....hope this makes sense...am just calming my temper down a bit !!