Hi, my gt40 is now around 20 years old, and requiring a bit of tlc these days. I'min yhe process of replacing the clutch. Its a ford 289 mated to a renault box. And this is where i need some help. As i recall i intalled a renault 21 turbo box, however the number on the back of the box seems to be a renault 18. Who knows! Anyway i purchased a LUK replacement clutch which had 22 teath and a diameter of 240mm which should be correct, however it didn't fit the spline on yhe box. So does anyone know what plate i need to use? The valeo 826859 might be correct but I'm guessing. Any support would be great. Thanks