Question about 1998 Chevrolet K1500

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I have a 98 Chevy Silverado, 5.7, 4X4. The 4X4 will engage but it

Starts making a clicking sound and gets faster as you get faster and of course the clicking gets slower as you get slower. The 4X4 does still work. When I go back to 2 wheel drive it goes away. What can I do to fix it? Thanks, Scott

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  • 98chevy Feb 05, 2009

    It sounds like it is coming from the transfer case, I did take off the front drive shaft and checked the U joints, they were fine.
    Thanks in advance. Scott

  • 98chevy Feb 05, 2009

    It sounds like it is coming from the transfer case, I did take off the front drive shaft and checked the U joints, they were fine.
    Thanks in advance. Scott

  • 98chevy Feb 05, 2009

    Thanks, I'll check it out!!




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Can you pinpoint where the clicking is comming from, is it from the tranfer case , front differancial, front hubs? From your discription, it sounds like something maybe is not engaging all the way, Have you checked any of the U joints on the front drive shaft?

Posted on Feb 04, 2009

  • ccn7 Feb 05, 2009

    If you think its comming from transfer case you could have a tooth gone off a gear. you won't know for sure untill you pull it and look at it. I know back in the late 70's early 80's the transfer cases had a chain, like a timming chain that connected the gears. All the 4 wheelers i had, had the old gear driven transfers, they did away with them in the mid 70's and went to chain driven for the noise and easier shift reason, If its that stile of transfer it could be the chain slapping aginst the case inside.



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