Hi guys,
I need some help. Have a '68 Camaro SS w/ a BBC 396 and TH350 trans. The car has a vibration (extremely noticeable) between 60 and 67 or 68 MPH. The wheels are fully balanced, the U-joints are brand new, etc. I have two areas that I haven't attended to....first, the left header is slightly touching the steering box....and second, I had the drive shaft constructed from a heavy-duty Impala one.....but I never had it balanced. I've also been informed about brake drum balancing (car has 4-wheel drum)???? I'm struggling w/ this. Any assistance would be greatly appreciated. Thanks!