A/C pully is going out can I rerout the belt?

depends on year modle truck for v8 if you have one serpentine belt no replace ac.okv8 or v6 if you have several belts dont worry about it ac gose out belt just spins on free spining pully. unless you want to remove ac compresor,you con get shorter belt just tell parts person ac is removed

You can disconnect the A/C coil so the a/c will not engage . The 2 wire plug on top of the compressor powers up the clutch coil , to engage the compressor. If this is unplugged , then the belt can free wheel without the worry of the compressor seizing up and ruining the belt. If the bearing for the clutch coil is no good ( noisy and overheating) you will need to replace the bearing . This can be done without evacuating the a/c system !!