I see that FastLane has them for $269.

I still have my old receipt. I did pay $140 for the entire rear assembly. Not sure why such a price hike...perhaps made entirely out of petroleum?

BTW, Fastlane also has the guide jaws available for under $6...

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car