Looks like it is possible to move the top cylinder pin out of the way and swing the cylinder down without removing the whole unit. I have a spanner wrench to get the top cap off , does the whole assembly come out at once , I have the kit ordered. Once the piston is removed is it just a matter of replacing the seals and reinstall/ Any help or possible photos of rebuild would be appreciated , looks like a prestolite cylinder. any other tools needed.