Car Vibrations 55+mph
Well the vibration I'm getting seems like its more than an unbalanced tire issue. I can't swap fronts w rear because they are staggered tt2 I will try to maybe use my buddies wheels from his vette. I originally though it could be something like the working angle of the u joint but I have no idea how I would even begin checking that.
Well sounds like road forcing is a dam critical starting point lol. Would it be cool if I road balance just the rears and see how that goes? Just don't really have the time to sit there and wait for discount to take 3 hours to balance tires.
I would start with the rears and honestly I would avoid tire shops in general. Discount, Wal-Mart, Tires Plus, Big 10, have all sent me several cars they couldn't get to ride good, and in the end it was all road force. Those places are nightmares!! Just drive to any GM dealer (or any major dealership) because they have the right equipment and technicians who understand the concept of road forcing. The price is the same as most tire shops and you will generally get someone who is good with vibrations. Also, I'd watch the process and write down the results from each tire. If a tire turns out above spec have them measure the runout of the rim and see if the tire can be reclocked on the wheel to net a lower number. Sometimes you just can't get them lower because the runout is too excessive and that's when you replace the tire. Like I stated before, to me anything over 20lbs rides awful on a passenger car but 25 is the spec for P tires. To me 17lbs and below is a good ride and 10lbs and below is Cadillac territory. Make sure they road force them and when you watch you should see a giant roller come down and apply pressure on the wheel assembly. Hope this helps!
Last edited by TurboStangJON; Mar 8, 2011 at 08:00 PM. Reason: More information!
