When it comes to precision parts there is absolutely no room for error. These measurements display the radius between the dowel pins off my original flywheel off the Corona and the between the new ATP one. The ATP one falls short of 1/32 of an inch. Because of this the pressure plate is unable to line up perfectly with the dowel pins and thus not sit flush on the flywheel. ATP themselves weren’t much of a help in replacing or even showing a concern in making adjustment, as their representatives said it’d be best to just order another flywheel from another company, as the model of flywheels for the Corona could all be off in measurements, luckily partsgeek is offering a refund. If y’all are looking into ordering any flywheels, especially ones from ATP for 20 or 22r being part # Z-276 avoid going with ATP.