Anybody running a 2F in a early 40? I'm slowly putting mine together and the plastic fan of the '76 2F is about a 1/8" from hitting my brand new radiator. I actually had to trim the blades because they were touching the lower radiator tank. It's too close for me, I'm afraid the first time I twist it up I'll munch the radiator. Is this the way it's supposed to be or did I mismatch a strange combination of parts again?