I have too many cars, one of them is an old '81 242 which I'm fixing up a bit to sell. It needs a new windshield, badly cracked and leaking. There's plenty of decent glass at the local wreckers but how do I get one in and out? Is it within the realm of a shadetree mechanic? Any special tools I need? I've replaced rear windows in 240s but the windshields install much differently.