I remember a discussion some time ago regarding two types of grilles for 1940 LaSalle. Well, I just discovered (the hard way) that there are two types of rear bumpers for 1941 Cadillacs. One wide with 9 ribs and one narrow with 8 ribs, as can be seen in the pic below. I had no idea, and I didn’t know that I had both types. The 9 rib bumper is the one that is re-chromed and I’m sure you can guess which one fits my car. I don’t know the situation with my front bumpers yet, need to find some more strength before I go ahead with the tape measure.