# New gears = Messed up Speedometer

**URL:** <https://forums.speedlife.net/t/new-gears-messed-up-speedometer/188290>\
**Category:** PittSpeed Automotive\
**Created:** [February 27, 2007, 11:58am UTC](https://forums.speedlife.net/t/new-gears-messed-up-speedometer/188290 "2007-02-27T11:58:28Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![imported\_Sleeper](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_sleeper/32/5939_2.png) [@imported\_Sleeper](https://forums.speedlife.net/u/imported_Sleeper)\
**Post date:** [February 27, 2007, 12:07pm UTC](https://forums.speedlife.net/t/new-gears-messed-up-speedometer/188290/4 "2007-02-27T12:07:05Z")

</div>

> [@welcome to buffalo?](https://forums.speedlife.net/t/welcome-to-buffalo/28364/30):
>
> I’m pretty sure you’re speedometer is electronically controlled on the 2004. You’re going to need to retune to fix the speedo. I know my 2004 Mach 1, I had to reprogram it only when I switched to 4.30s
> 
> Purchase a pocket programmer, or goto a place that offers dyno tuning.
> 
> I know the older style SN95’s (94-98) could correct this issue with a proper speedo tooth gear size. May want to double check and see if you can just do this instead. I think they cost about $80

oops, wasn’t sure what he meant adn now i do, what about laurel mountian stangs? couldnt they reprogram it?

---

_[View the full topic](https://forums.speedlife.net/t/new-gears-messed-up-speedometer/188290)._