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Old 01-03-2013, 03:09 PM
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Serpentine belt miss match question

If the engine crank pulley has a 4 slot AC compressor pulley, and the AC pump has a 6 slot pulley assuming proper alignment between the two pulleys.

Would there be any problems using a 4 slot belt being the old AC was a 4 slot AC and worked fine?

This is being done by installing an AC pump with a different attachment design and a new bracket to move the AC in and down for frame clearance plus a shorter belt.

Only other options would be to find an OEM crank pulley with a second 6 slots, or see if the AC could be changed over to a 4 slot pulley.

Does anyone know if there is an OEM crank pulley with a second 6 slot for AC that would fit without moving the front belt passion?

Engine: Pontiac 2008 LS G8 L76 6.0L.


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Old 01-03-2013, 04:14 PM
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If the old A/C worked with 4 groves and the diameter is the same I don't see why not. Is the belt or set up your talking about only powering the compressor?
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