Product review (5 stars): Save my pocket a whole lot of cash
My fairly new Frigidaire Gallery Series washing machine was suffering from the shakes. They were pretty bad.  Whenever it would go into spin cycle it would practically hop across the laundry room if I wasn't there to shut if off.  With 4 kids producing a ton of dirty clothes daily I had to pinpoint the problem quick.  Either fix it or get a new machine to the tune of $1000 or so.  Discovered the laundry mat is super expensive by the way.  Anyway, I did some googling, unscrewed the bottom and top panels and deduced it had to be the shocks, springs or both.  I also found a diagnostic procedure for the machine online that told me my door wasn't locking correctly.  So these shocks being half the price of just one of the springs, I rolled the dice and hoped these would cure my woes.  I also ordered the door lock mechanism from another vendor.  Well it took a while to take out the pins, I used a 15mm deep socket I believe (its in the instructions that come with it), I eventually figured that if you support the weight of the tub a bit, they'll slide out easier.  Took about 45 minutes, but got them on. Put the machine through a spin cycle, crossed my fingers and to my delight, everything was running smooth!