Floppy Alternator Belt

[wxman1]

Recently changed some of the engine front end components back to
stock. (Alternator brackets, crank pulley, short water pump, back to
stock power steering pump, etc)

Well...I have to move the alternator all the way out to the end of the
upper hold down bracket and its still not tight enough. The upper
hold down bracket look stock compared to whats on some trucks that I know
are bone stock.

So I wonder if some of you guys with 69 C10s with 350/TH350
would post the stock numbers of the alternator belts you're
using if you know them? Maybe I've got an alternator belt that is too long?

Jim
Mt Juliet