OK guys, I just bought an older MAC tool cart (MB155UC), 3 drawers, gas shock operated lid, swing out trays on each side under the lid. The thing was full of a bunch of brand new SO tool sets in it. The lid did not work properly due to the gas shock was bent and almost locked up. I've looked locally but can not find a replacment...Will MAC warrenty the shock? If they don't will the truck be the cheapest way to get a replacment?