Never properly introduced

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Hi, I have been reading treads here for years but not good at posting. But I am retired now so got time to improve my communications. I also am starting a big rust repair on my Suburban. My Dad bought this truck new in 1971 and used it in his electric trade for 30 years. I have maintained it since 1973 when I started my career as a auto mechanic. The truck had some rust repair and a repaint in 1999. Well the rust has returned, and I can't ignore it any more. So I will be reaching out for parts and advice, I know there are many skilled and informed people here. regards Frank