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Snoopy, what year is your assembly print from. Is is possible that in earlier years, they were supposed to remove the plug...but then discovered later that it was a waist of time and just left them on? I found some reddish/brown RTV like stuff under the seat belt bolts on my 73 Challenger. It looks to be the same thing as was pictured.



Feb 3, 1970. My guess is that it wasn't a make or break thing for inspection. The only down side would be the loosing of the bolt do to the compressibility of the soft plug. Because the bolt goes into a weld-nut, the pad would serve no purpose . If sealing was a problem, they could have used a sealant on the bolt threads or used an encapsulated nut.