Does anyone know of a tool that compresses the outside of the U cup so it will fit past the internal threads on a hydraulic cylinder without damaging the seal. We usually heat up the seal in hot oil and use a piston ring compressor but the steel is too thick and in order to use it the aduster is on the bottom. We have also tried plastic installation tools that are we got from Cascade Corp. but they are also too thick. I know someone out there has a better idea. Let me know.