Yep you need a 2.0 atlas for a 3.75.
To bend both shafts I'd say going over a kerb at 90 degrees at speed, possibly a spot of dukes of hazard jumping (but I'd expect the case to be bent too from the latter).
Think that's preface-lift as that looks like the dash plug in bottom right of last pic also the red bulkhead plug makes me think so too.
Ifso you need to know what year & trim level it's for .
As they changed in 72 & there's 3 specs levels (saloon) 2 for EST then manual or automatic.