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  1. General Chevy & GM Tech Questions
    So the past couple days I've noticed a weird knocking type noise around the 15-25mph range. It doesn't sound like it's from the engine but more like from the drivetrain, maybe the transfer case or transmission? The people i purchased it from had 3 22" rims an 1 20" rim. I know that with AWD...
  2. Chevy C/K Truck Forum
    Son (19) pulled up today and I heard it. Its coming from beneath the truck and seems like around the bell housing or oil pan or trans pan. In that area. The sound also could seem like its traveling thru driveshaft and seem like its coming from rear of truck. But, as you move toward front its...
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