# 2003 trailblazer 4x4 front end vibration

**URL:** <https://community.cartalk.com/t/2003-trailblazer-4x4-front-end-vibration/37099>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, trailblazer\
**Created:** [September 24, 2009, 7:38pm UTC](https://community.cartalk.com/t/2003-trailblazer-4x4-front-end-vibration/37099 "2009-09-24T19:38:53Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![truckguy](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@truckguy](https://community.cartalk.com/u/truckguy)\
**Post date:** [September 24, 2009, 7:38pm UTC](https://community.cartalk.com/t/2003-trailblazer-4x4-front-end-vibration/37099/1 "2009-09-24T19:38:53Z")

</div>

I took of the front wheels and found a grumbling noise where the cv joint goes into the front diff. I spun the shaft with the hub disconnected. I was told that it is the cv bearing, but how do I tell if it is that or the diff bearing.

---

<div class="post-metadata">

**Author:** ![truckguy](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@truckguy](https://community.cartalk.com/u/truckguy)\
**Post date:** [September 24, 2009, 7:46pm UTC](https://community.cartalk.com/t/2003-trailblazer-4x4-front-end-vibration/37099/2 "2009-09-24T19:46:21Z")

</div>

This is the rest of the info for the question. It starts at about 10 mph and does not rise as mph rise and continues to I stop. Also the front left cv axle is harder to turn that the right side.