# Unknown squeak

**URL:** <https://community.cartalk.com/t/unknown-squeak/36531>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, avalanche\
**Created:** [September 12, 2009, 7:53pm UTC](https://community.cartalk.com/t/unknown-squeak/36531 "2009-09-12T19:53:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![checkers](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@checkers](https://community.cartalk.com/u/checkers)\
**Post date:** [September 12, 2009, 7:53pm UTC](https://community.cartalk.com/t/unknown-squeak/36531/1 "2009-09-12T19:53:24Z")

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I have a chevy avalanche. i have already replaced the transmission. I am getting a squeak from underneath the truck. As I accelerate, the squeak speeds up. When I get to an increased speed I don’t hear it any lo0nger, probably because I am outrunning the sound. Any idea as to what is wrong?

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [September 12, 2009, 10:17pm UTC](https://community.cartalk.com/t/unknown-squeak/36531/2 "2009-09-12T22:17:23Z")

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Check the u-joints on the driveshaft.  
We have no idea about how many miles are on your odometer, but it sounds like worn-out u-joints.

You will know for sure if you drop your driveshaft while driving down the road.