Cage rule help
I have a '68 Dart that started as a hemi clone. I cannot run the car as an AH ($$$) but would like to try a GT class w/383. I have a question about the 10pt cage currently installed. There are 6x6 plates welded to the floor under all the up right bars but there is no rocker bar. Reading the rules I don't quite understand when the lower bar is required. My rule book is old and so am I.
Thanks
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