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I'm going to my local steel supply company and purchase some steel square tubing for (69 Roadrunner) frame connectors. I did the same thing on my Challenger, but this time I was thinking about getting 1x2inch tubing instead of the 2x2 I got last time. Reason for the 1x2 is I won't have to go into the floor, but I'm not sure if the 1x2 would be rigid enough. What do you guys think?



I think mine are 1x2", I think is plenty for a street car. That is the size Direct Connection offered in there connectors. I have them on my car and it is plenty stiff, way different than my black 74 which don't have them. Like you said they fit best when not cutting the floor.

Here's mine.