Decided to put a "yellow" fan on my car and got a shorter hub extension from a member here. But just curious, those that did the shorter TR2-3B extension, what did you use for the main hub bolt? Mine is an early TR4 and I measured my bolt at 7" tip to tip. If I put this extension on the bolt is too long and can't fully seat as it won't screw far enough into the crank. Did most source a shorter TR2-3B bolt or put a regular bolt in the crank? The member that I bought it from is going to check if he has a bolt, but figured I'd ask here in the meantime. Thanks!