Quote:
Originally Posted by JDCinBRL
Recently after the purchase of my '21 ZLE, I noticed a sound to rear of car once I hit 120-130mph on interstate. It sounded as though it was coming from the trunk area. It was almost like the sound of a styrofoam ice chest squeaking. Lifted car and lubed sway bar bushings along with other suspension points. The squeaking sound went away. What I am noticing now is a lack of control floaty feeling on pull when moving across lanes at highway speeds. Tires: F1-3R front, R888R Rear. Tire roll due to mismatched tires was mentioned by a local mechanic who inspected the car after initial purchase. Car seems to hug tight curves very well on back roads. I am leaning to changing the rear tires to 3R but reaching out before I do. I have done the same maneuvers in my previous ZL1 without 1LE suspension with awesome handling. Somethings wrong. It definitely limits my confidence on highway. Any thoughts/suggestions would be appreciated. Thanks
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When my car was brand new, the rear seemed to move around too much, especially on acceleration. I took it in and found it would not align to spec so I bought double adjustable BMR rear suspension bars and had the real alignment set to zero toe. Made a night and day difference.
BTW, the car behaved like that with the 3r's and PS4 Michelins. I'd get the alignment checked first.