When we write on these forums, there's a lot of thinking that can't be done as well as when you've got hour to think about it. We snap to answer things.
I'm going to say that a monte carlo bar might actually help in a mopar, but not like in a unit body gm, or ford, and it has nothing to do with who welded what how. The coil spring on a chevy, or ford goes up toward the shock tower, make it have a higher center of gravity. Where is that spring in you Mo-Pig, in the lower control arm. So a monte carlo bar is another reinforcement point, and that's never bad, but it's limited in it's need. Reinforcement under the radiator, and from the shock tower to the firewall begins to make sense now.