Quote:
Originally Posted by Clay54
MiraclePieCo, I think my running boards are stock in all ways on my '54 and the nuts on the 1/4 inch bolts are square. Had to make a special socket to get them off. My factory assembly manual shows the nut to be GM part 131395 nut but I don't have a cross reference so not sure what that nut is in real life.
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Lol, for square nuts my "special tool" is a crescent wrench
![Wink](http://67-72chevytrucks.com/vboard/images/smilies/wink.gif)
Or a blow torch.