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Re: Trouble removing upper control arms, seized onto studs
I just did a bunch of work on a 1970 that is all original and every bolt required head and PB blaster. The heating, then the cool blast expands then contracts the metal and helps break it apart.
I even had to do that with the ball joints (apply heat to the spindle). That was a first for me.
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1970 C15 GMC Long Bed
1986 C20 Scottsdale
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