Re: shimmy and shake
Well, it only happens at highway speed, 60 to 70 or so. And it's the whole freakin truck shakin'. I have not tried swapping tires, the fronts are new and balanced. The rears are relatively new and they do have weights. I had to buy the same type of tire as the rears for the front or a shop would not put them on (liability they say). Pep Boys futura's, 31x11.50 15's. Not a swamper tread, mildly aggressive I guess.
It seems to be worse when I am on the throttle, that's why I though U-joints.
Thanks for the info about the intakes. I think a Rochester Quad needs the spreadbore style. I will check. I would like to go with a Holley I think.