There are no upgrades
for the stock side seal springs. Some will recommend to use FD3S side
seals springs for higher spring tension, but this hasn't been proven to be of
any benefit. Due to low wear, you can typically reused the old side seals
springs. Clean and inspect all the side seal springs for obvious signs of
damage; replace any damaged springs. Unlike the side seals, you do not
have to keep track of the original side seal springs positions.
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