Installed this belt on a 2006 F350 6.0L Powerstroke. When towing uphill, the fan hit the belt and squeaked "tried several different belts" which caused me to let go of the accelerator. Just got back from a 1000km ride, so far nothing good has squeaked. So I am giving this review 4 stars and will update it later as the belt has only been worn for a month.
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