Hydraulic jack fluid.

I came, I saw, I kicked its ***!


Dana 4 Caliper 1
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Piston on the right was the stuck one.
Finally got it to turn, then hydrologic pressure and twisting.

The one on the left is the other from the same 1/2.

Rust in the usual place.


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The other 2 pistons are really good but I'll probably replace all 4
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