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Old February 27th, 2012, 01:25 PM   #27
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Originally Posted by Jeep ZJ View Post
But arent the pullys different sizes?
The upgraded alt has a 7 groove pulley and is just a hair larger. I measured it when I swapped mine and it was something like .07" larger. The 6 grooves closest to the alt line up perfectly with the normal belt alignment on the 4.0. In my opinion it wasn't worth it to swap the pulleys.
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