I mushed up the beginning Threads on one Arm trying to get the Bolt in.
I use a 2x4 and levered the Engine around and stuck a long tapered Punch in the hole until at was lined up. And, used one of my cheap Harbor Freight Taps to chase the Threads.
I think part of the problem was that I had installed and tightened the other side. I should have left it untightened to allow for a little more play on the other side.

__________________
84 300D, 82 Volvo 244Gl Diesel