I seem to recall that the fitting is tapered with a key so you won't be
able to move the pulley but a dual pulley will fit your alternator.
John and Muddy
Keith Tanner wrote:
>
> >The dual-pulley makes it easier to install - single-pulley alternator has
> >to have the mount moved forward 1 inch to get the pulley to line up with
> >the belt travel.
>
> Sounds great...but no parts store that I've visited in Ottawa can find or
> identify a 10si with a dual pulley. I've been looking and asking questions
> (hint - a GM parts counter will have no idea what a 10si alternator is but
> will brag about how many different types are needed for GM cars) and
> apparantly it was very rare to use a dual pulley on a car. So I've got
> another single pulley one here and I'm going to see if I can move the
> pulley further out. Unless someone can give me the model, year and engine
> type of a car that uses this elusive beastie - or one of those wise old
> parts guys who knows his entire stock from memory. Finding this has proven
> to be more difficult than I had anticipated.
>
> Keith
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