Anyone remember these vintage traction bars ?

My first automotive mentor and local drag car builder used Mopar Super Stock springs and an adjustable pinion snubber on several cars in the mid 1970s. One was a 68 Camaro small block 4 speed with 10.5 M & H Racemasters that ran 6.70s ⅛ mile at local strips and that was usually the quickest car there. Another was a 64 Chevy II small block 4 speed mini tubbed car with small slicks. Both quarter panels were buckled in behind the door. After seeing this car, I had him set up my 65 Falcon 289 4 speed street car that way. He actually moved the frame rails in on the Falcon. I had 15 inches of room under there.

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