PDA

View Full Version : Trams speedo gears



jdsgallops
04-21-2015, 06:03 PM
Now that the 90 is finally driveable I have noticed a few issues. The most noticeable is the speedometer. It was spot on or very close when I use to drive the car before. The only change has been the teams which is out of a 94-95. We're the internal gears on these different than the early model trans? If so what speedo gear do I need for the 95 trans with 3.27's? The speedo currently reads at least 20mph high.

potshotscott
04-21-2015, 08:14 PM
This likely has to do with the teeth on the output of the new trans (if I recall correctly). There's lots of threads on it here.
From the old page - this FAQ saved my bacon when I went from a 94 trans to a 2003 mustang trans.
http://www.sccoa.com/faq/speedgr.html
This might be of help.

jdsgallops
04-21-2015, 08:59 PM
Thank you Scott. Exactly the info I needed!

jdsgallops
04-28-2015, 02:01 PM
So according to that page I need a 20.5 tooth gear. I have 2 black 20 tooth here so I installed one. Now my question is how far off will the speedo still be because of the .5 tooth?

820
04-28-2015, 03:02 PM
Do you have GPS on your phone?

jdsgallops
04-28-2015, 05:37 PM
Ah yes. Speedometer app!