Sundancekid69

Looking to find the installation manual for GM part # 84892542 This a GM Dually Wheel liner for 2024 trucks according to there site it will not fit the 2020 to 2023 Dually trucks. I was able to verify that the outer skin is the same from 2020 to 2024 however the inner fender parts have changed a little. Not sure if it is just different placement of the fasteners or what. Maybe the install manual could shed some light on it.

When my 2021 3500 GMC HD is under load like going up a hill it stated making a high pitch noise and show on the dash how many mile before it will slow down to 65, i assume because of the def fluid but the Tank has over 3/4 fluid and just added some yesterday.