I had the same issue just putting the Differential itself back in the Subframe. I don't know how many Hours I spent on it but I finally got it in.

I believe once you remove the Differential years of stress cause the Subframe to change shape; making it hard to get the Differential back in.

I don't know how I resisted the idea of enlarging the Holes but I did.

It would be nice if the Studs had pointed ends on them.

I did the job with a Floor Jack and a Sicssors Jack. I think if I had the Transmission Jack I bought recentely the job would have been a little easier.

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84 300D, 82 Volvo 244Gl Diesel