Clunk under truck

tj8123 · August 24, 2020

Hey, I have a 2014 1500 with the 5.3. I have started hearing a clucking noise from under the truck. I went into a parking lot and tried it in many different ways, but what I have narrowed it down to is the transfer case. Truck is in reverse and in auto 4wd with the front wheels straight or turned (hear way more turned). It is a loud clunking noise i thought at first it was the rear differential. But digging into it more I think its the transfer case. Any help would be greatly appreciated.

Edited September 2, 2020 by tj8123
Update

acinquegrana · August 24, 2020

It's the leaf springs. Trust me. I know. Drove me up a f****** wall. Started on my truck at 10k miles. I noticed my center leaf was crooked. Checked further and noticed my u bolts weren't exactly tight. I took the springs apart and installed an add a leaf with alignment clamps front and rear. Im at 43k now and the noise is back (i think its the shock extenders i just installed). Get under there with a little flat head screw driver or pry bar and separate the leafs and load them with grease. I can almost bet the sound will go away (for a little while). The root cause of this problem is there is only one alignment clamp at the front of the spring pack and its not really tight so it allows the middle leaf to rotate a little. When i reassembled the springs i used fine thread u bolts from my local spring shop. They are less prone to come loose. It infuriated me that my springs were clunking.... the clunk i have now i am convinced its the extenders since it started just after putting them in.

Let me know how you make out.

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tj8123 · August 24, 2020

thanks will try that

tj8123 · August 24, 2020

Sorry I just reread your response. But are you talking about front and rear leaf spring or just the rear? Because all I have is a rear. But I will check mine tonight.

reardiff · September 2, 2020

This is a known issue. Search around and you will find many forum posts on it. You can also put a piece of rubber between the leaf's. My was clunking horribly and soon as I put rubber in between the leaf's was instantly better. I used a bicycle tire innertube and just cut sections. Much better than grease in my opinion since grease is messy and will eventually need more.