Page 464 of the Assembly Instruction Manual shows two "Refinf." (I assume this means reinforcemnts) secured to the rear bumper bar by three bolts. One of the reinforcents is damaged on my '74 convertible and I would like to replace it. The rear bumper bar is a box channel with no way to get a wrench on the nuts. The drawing looks like two of the nuts are welded inside the Bumper Bar, the third is call a "special nut" and it is not obvious that it is welded to the inside. I don't want to remove the reinforcement unless I'm sure that I can reattach it. Has anyone had experiece with this. Thanks, Bill