If the welding was done with oxy acetylene it may have overheated the frame in some spots removing the temper of the metal. The frame is a rather thin walled box rather than a more solid "C" channel or "I" beam frame. I could see that happening without too much trouble.
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Mike Nancy and the fuzzies
Fulltiming since June 2004
Volvo 660 MH tow vehicle
2005 MS 38RL
2007 Saturn Ion "toad"
2010 Gold Wing "piggyback"
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