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Why one useless belt?


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I'm stumped as to why my XT has one absolutely useless belt? The back belt drives the PS pump and the A/C compressor. The front belt drives the PS pump, the A/C compressor, and the alternator.

 

I could take the back belt off and all accessories will still be driven...

 

And the point of this is? :rolleyes:

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Take a look at the amount of surface area that the front belt has in contact with the A/C pulley. The belt would just slip on that pulley when the A/C kicked on if you didn't have the rear one to help it.

 

Another advantage of this setup is that you end up with redundant belts on your water pump, which is a nice safety feature.

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