[mmcintee1985@gmail.com]

I have a 1988 3300 Open so probably very close.  There is a like a wire "C" clip in the wiper arm under a very thin washer which keeps it in place.  I believe that "C" clip should release when force is applied to take it off.  Those are on there pretty good so I normally gently pry it off with a flat blade screwdriver but that damages the washer which holds the clip.  I was able to find a few new ones on Ebay and the first time I took it back off to adjust the position, the washer broke off.  Mine are currently just pressed back on with technically nothing to secure it.  I don't like leaving it that way but they do attach themselves pretty good so I am not too concerned at the moment.  Would love to hear any other experiences out there...

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Hi thanks for the help. So this C clip is on the post between the motor retaining nut and wiper arm spline? Or under the arm where it lifts up and down.