Originally Posted by filip00

OK so to update - apparently there is very little chance I'll find the bolts necessary with full thread and the required strength to keep this solid. Not to mention delivery times...

So I decided to drill out the unnecessary thread from the flange. This will revert the situation to "standard" and I'll keep the original bolts. The only problem now is that I managed to mount the diff back to the car and these holes are now hard to access...and I *really* don't want to drop the diff again.
So the question now is - is it a problem to drill the holes on the half-shaft side and keep the threads on the flange side? This means the bolt will be threaded from a different side, but basically all else will be the same. The bolt head will only be a bit trickier to access, but nothing problematic. Am I missing some other problem with this or would this work? Thanks.