I got mine from RPM outlet for $80. It worked just fine for me as long as you follow the directions. It wasn't too bad removing the pulley, but would have been easier if I had one other person helping. It probably took me 30 minutes total, to take the old one off and put the new one on.

I would highly recommend using a tool, I've heard of people trying to get by without it and costing them alot more in the end.

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