07-02-09, 03:36 PM
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#8 (permalink)
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Parts Geek, M1 Mechanic
Join Date: Mar 2003
Location: Wheelin' a Camry
Posts: 14,949
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The wiper arm is made of a much softer material than the post on the link. In addition a new arm does not have splines. The splines get formed when the arm is installed and tightened. I would not be surprised if the splines on the post are intact and just filled up with the soft material from the arm.
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Original owner 93 FZJ80,locked,blown,water/methanol injected(like a WWII fighter aircraft),lifted,winched,snorkeled,slidered,Sleeed ,moneypit. Balanced on a pin head. 95 FZJ80 trail truck (hers), 94 FZJ80 320K with a knock and a lumpy old Dodge car. 
http://i487.photobucket.com/albums/r...Gastrap063.jpg
http://i487.photobucket.com/albums/r...frifles004.jpg
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