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		They aren't too expensive given how long they last as Clarkie said.  I was quoted $145 by one place and mostly $200 by everyone else.  Except LR who were about $400 or so.
The lowest quote was actually by a non LR specific parts place.
Being a Dayco part surely they are common to at least one other GM engine?
	 
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		By the way I did a dodgy shim job on the bolt (Sunday morning and I don't have any shim material).  Refitted it along with the belt that came off it and the squeal is gone.....for now.
I haven't given it a real test drive.  Just idled it and revved it up a bit and drove it up and down the driveway.
	 
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		Still haven't replaced it.  Very minor squealing when first started of a morning.  Not bad since I shimmed it with alfoil 5000 kms ago :D