K-Frame 1972 vs. 1973

[Gumby]

I remember reading a thread on another mopar forum about how the 1973 E-Body K-Frame had some additional bracketry around the motor mounts. One of the commenters was saying how the additional bracketry was put there to help prevent the engine from going into the cab in case it breaks off of the motor mounts in a front-end collision. I can't find this thread anywhere.

I'm trying to find what bracketry they were talking about. Here is a picture of the K-Frame from my 1973 Challenger:

 

[Mr Cuda]

Late 73 and 74 got the extra brace or stop.
Yours does not have it.

 

[Gumby]

Late 73 and 74 got the extra brace or stop.
Yours does not have it.

View attachment 135702

Were there stops on both sides of the K-Frame or just on the side with the idler arm bracket?

 

[Mr Cuda]

Both