TransmissionDIYCommunity Starter

2021 Chevrolet Silverado 1500 — light-throttle shudder around 35–45 mph

ApexTunerCommunity StarterJun 2, 20262021 Chevrolet Silverado 1500 LTZ 6.2Boston
There is a rumble-strip-like shudder at steady light throttle in a narrow speed range. Harder acceleration or lifting off makes it disappear. How would you separate converter behavior from engine misfire or wheel/tire vibration?
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