Jon; The bolts in the 3 link on my camaro are also 5/8 for the upper and lower.The 4130 moly rod ends are lined and are not as nosiey.also my car has no sound deadern & interior.That makes it loauder than your car would be.I used 1.250x.095 4130 tube for my 3 link tubes.The 1.125 will work if the wall thickness of the tube is not to thin.
