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redlinedesire
01-26-2008, 07:24 PM
heres the deal i had to put a new alternator on my 03 cobra. so while it was out of the car i bought a metco 3.2 pulley. my other pullies are whipple 3.5 a 2pound lower and 3 billet flow idlers. before the new alt. pulley. the belt is a 79 inch belt. but its toooooooo small . anyone might know ?

03 cobra toy
01-26-2008, 08:42 PM
:thumbsup:
http://www.stangshiftergaskets.com/BeltSelectionGuide.htm

redlinedesire
01-26-2008, 10:12 PM
man i did not see what i need on that site. gonna stare at it some more.lol

jimmysidecarr
01-26-2008, 11:39 PM
When I increased my alternator pulley to 3.2 during my new alternator install, I just picked up a couple longer than I had, from NAPA.(stock lower, 3.5 upper)

Then I brought back the one I did not use for a refund/credit.

NAPA carries Gates belts, with both names on them. They are very accommodating about belt returns(save the receipt). I use the one on 1960 near me, and they always seem to have every size I have ever asked for.

Since you know the size you used before, I would add about an inch and see if that does it. Buy one a little shorter and a little longer than that too, to save trips.