Been pecking at the GMC in my spare time... replaced all brake lines, rotors & calipers, master cylinder. New fuel lines, pump assembly, and filler neck. New spark plugs yesterday, it fired right up and ran smooth as silk. Going to dive into the rockers and cab corners this week coming. (I am on "vacation" the 10th - 16th) Might as well get it done....
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1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
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