# Unknown vibration

**URL:** <https://community.cartalk.com/t/unknown-vibration/79273>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [May 13, 2013, 2:02am UTC](https://community.cartalk.com/t/unknown-vibration/79273 "2013-05-13T02:02:23Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![s10v8](https://avatars.discourse-cdn.com/v4/letter/s/dfb087/32.png) [@s10v8](https://community.cartalk.com/u/s10v8)\
**Post date:** [May 13, 2013, 2:02am UTC](https://community.cartalk.com/t/unknown-vibration/79273/1 "2013-05-13T02:02:23Z")

</div>

I just put a sbc (small block chevy) in my 91 s10. i am now getting a vibration while im in park. You dont feel it until you push the gas. i just replaced the flexplate and it got a little better but it still vibrates. Any ideas?

---

<div class="post-metadata">

**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [May 13, 2013, 3:59am UTC](https://community.cartalk.com/t/unknown-vibration/79273/2 "2013-05-13T03:59:37Z")

</div>

My guess would be loose engine or xmission mounts or the cat shield.