# Finally...the SHO atx to mtx swap is complete **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [June 5, 2007, 1:02pm UTC](https://forums.speedlife.net/t/finally-the-sho-atx-to-mtx-swap-is-complete/30407 "2007-06-05T13:02:51Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Mike93](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mike93/32/7325_2.png) [@Mike93](https://forums.speedlife.net/u/Mike93)\ **Post date:** [June 5, 2007, 1:02pm UTC](https://forums.speedlife.net/t/finally-the-sho-atx-to-mtx-swap-is-complete/30407/1 "2007-06-05T13:02:51Z")
Wow…it took nearly 2 years of head scratching and parts replacing but I FINALLY found the source to my vibration/drivability problem that had plagued my car since the mtx swap. Long story short… **one missing dowel pin in the flywheel** was enough to create an imbalance in the driveline that shook the dash, gave a crap idle, poor acceleration, and modest mpg. Also, I had used an Autozone clutch that I found to be a culprit into why I had difficulty shifting and a crazy amount of clutch chatter in reverse. A broken strap was found in this crap cltuch this past weekend when I installed a brand spanken new, stock replacement clutch kit (disc, pp, tob, quill sleeve) and resurfaced flywheel with 3 dowel pins. I literally took this car apart on several occasions in my seemingly never ending search for the culprit. This included the replacement or testing on the following components: computer, wire harness, knock sensor, dis, coil, plugs, wires, injectors, fuel filter, maf, timing belt, cam sensor, ignition timing, egr delete, y-pipe (cats), o2 sensors, etc. I can’t get over how much of a blast this car is to drive now, even if it a SHO!!! I’m excited I actually get to enjoy the car and spend the time cleaning it up and not troubleshooting. Now that it’s complete I’ll try to find some time to do a write up for the DIY and Write-ups section:) ---
**Author:** ![Bacon](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bacon/32/7230_2.png) [@Bacon](https://forums.speedlife.net/u/Bacon)\ **Post date:** [June 5, 2007, 1:04pm UTC](https://forums.speedlife.net/t/finally-the-sho-atx-to-mtx-swap-is-complete/30407/2 "2007-06-05T13:04:10Z")
Haha, about time they are quite fun to drive. 🙂 ---
**Author:** ![TrueBlue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/trueblue/32/7245_2.png) [@TrueBlue](https://forums.speedlife.net/u/TrueBlue)\ **Post date:** [June 5, 2007, 1:08pm UTC](https://forums.speedlife.net/t/finally-the-sho-atx-to-mtx-swap-is-complete/30407/3 "2007-06-05T13:08:13Z")
Nice! It’s a clean car. ---
**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\ **Post date:** [June 5, 2007, 1:15pm UTC](https://forums.speedlife.net/t/finally-the-sho-atx-to-mtx-swap-is-complete/30407/4 "2007-06-05T13:15:53Z")
how many dowel pins should there have been? 2 or 3? ---
**Author:** ![Mike93](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mike93/32/7325_2.png) [@Mike93](https://forums.speedlife.net/u/Mike93)\ **Post date:** [June 5, 2007, 1:22pm UTC](https://forums.speedlife.net/t/finally-the-sho-atx-to-mtx-swap-is-complete/30407/5 "2007-06-05T13:22:02Z")
[quote=“newman,post:4,topic:30407"”] how many dowel pins should there have been? 2 or 3? [/quote] 3, arranged in a triangular pattern. I’m led to believe that when I dropped off the flywheel at Napa they when the went to remove the pins (since they have to come out for resurfacing) they broke one of them and didn’t go about replacing it. I noticed this right away but didn’t think a missing pin could lead to such an obvious vibration in the driveline…I thought it’s sole purpose was for pressure plate alignment. I guess I learned a lesson here… ---
**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\ **Post date:** [June 5, 2007, 1:23pm UTC](https://forums.speedlife.net/t/finally-the-sho-atx-to-mtx-swap-is-complete/30407/6 "2007-06-05T13:23:23Z")
yeah. I figured 2 would align it enough. Well, glad you found it. ---
**Author:** ![87FOXGT](https://avatars.discourse-cdn.com/v4/letter/8/ecd19e/32.png) [@87FOXGT](https://forums.speedlife.net/u/87FOXGT)\ **Post date:** [June 5, 2007, 1:28pm UTC](https://forums.speedlife.net/t/finally-the-sho-atx-to-mtx-swap-is-complete/30407/7 "2007-06-05T13:28:36Z")
Damn, sounds like you hada hell of a time figuring it out. Well atleast now you get to go out and enjoy. :tup: to persistence.