..I wont claim to be a know-it-all by any means, however, what I do THINK is the 'Knee Knocker" style tach was never designed to be used as this one has been installed. I believe the 'Knee Knocker' design was originally mounted on early Wildcat consoles.... and thru the years, peeps have converted them to many locations... Saw a real sweet 69 and the fello had converted a Buick Knee Knocker tach and mouonted it on the steering column. Looked factory!
Wheelz, Tampa Bay