tried doing a practice run on the 93 jug, the design is diffrent from the 87 so hopefully it wont be to diffecult, had to drill out the screw that holds the seal for the pin that dics that you know english words n stuff, and i was only able to get out one of the valves, the other one was spinning around but would not come out :/ and it seams that there is no new seal in the gasket kit i got even though it says so on the package :/