Well I wouldn't call it a vibration....exactly; so much as an annoying whoop-whoop.
With the overdrive 65 is 2230rpm. And it had that; gentle, undulating, annoying, little chassis exciter, that I couldn't trace to anything. I have pretty soft street springs, and no traction-aid,so I had a lot of nose-down on my pinion, so that the HO-360 would yank it up to near zero when standing on it. But one day, I figured, you know what? this beast has no traction anyway, so I'm gonna give up some of that nose-down and see what happens. Presto!
