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Stuck Cross-Shafts

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mswyka:
Finally got around to going to Home Depot and picking up a gallon of acid.  Today we went out into the driveway, put two suspension brackets into an oversized plastic paint tray and poured in the acid.  It started bubbling out the ends of each shaft and after just a few minutes had managed to eat away almost an inch of the aluminum shaft.

mswyka:
Turns out the reaction is quite exothermic measuring up to 176 degrees F

JDmatt:
Tip: get primer on the bare steel asap, as it will rust quickly.  Unless of course you are going to sandblast anyway. 

mswyka:

--- Quote from: JDmatt on August 09, 2014, 07:43:38 PM ---Tip: get primer on the bare steel asap, as it will rust quickly.  Unless of course you are going to sandblast anyway.

--- End quote ---

Matt, you are right, the steel came out incredibly clean.  Only part of the suspension arm was submerged so yes, we will need perform a second cleaning.

The verdict with one gallon of Home Depot acid is that approximately 12 inches of bar were removed.  So since I put two shafts in the tank I now need to try to drive out what remains or get another gallon of acid.

mswyka:
Today's verdict:  what is left of the shafts will not drive.  Off to buy another gallon of acid.

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