Sorry to hear that Bart.
I am officially back on the road with my H165 (locked rear diff). I've been rodding on it for the past week and that H165 has bee holding up. Haven't hit the Nitrous yet. I've had the bottle out of the car. Moving the bottle from the passenger seat to the trunk to satisfy track safety rules. Only thing left is to weld up the bottle bracket in the trunk.
It took me a while to locate some new wheel bearings for the H165 and also had to modify the mounts. Ends up I didn't have to shorten the driveshaft and only needed 8mm wheel spacers (I did replace the wheel studs with longer ones).
Its great to be back on the road and best thing is, drag season starts next month!