# 06' GMC Sierra problems

**URL:** <https://forums.speedlife.net/t/06-gmc-sierra-problems/257041>\
**Category:** Shift518 Automotive\
**Created:** [February 22, 2011, 4:24am UTC](https://forums.speedlife.net/t/06-gmc-sierra-problems/257041 "2011-02-22T04:24:09Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![Sully93vr4](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sully93vr4/32/6278_2.png) [@Sully93vr4](https://forums.speedlife.net/u/Sully93vr4)\
**Post date:** [February 22, 2011, 6:58am UTC](https://forums.speedlife.net/t/06-gmc-sierra-problems/257041/9 "2011-02-22T06:58:11Z")

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> [@My 9 Second Formula Build \*DIAF 56k](https://forums.speedlife.net/t/my-9-second-formula-build-diaf-56k/39825/47):
>
> sounds like a blown unrebuildable 40r

Who the hell had a blown **40R?**   
Thanks for your input… :Idiots

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