To
@Big_John's point, there are TWO rear shocks for those C-bodies, one part number of which is shorter than the other one. I ran across that years ago doing shock upgrade research. In some respects, the listings were a bit murky at that time, but seems like one was for the HD suspension, C-body wagons, and B-bodies? That was the shorter one. I was doing his 40-some years ago, so it could be possible that some more current listings just show one shock, the shorter one. In a move to consolidate similar part numbers and save inventory costs.
Just some recollections . . .
CBODY67