O.K.,I did the T-5 swap,I have 3.55 gears.Which speedo drive gear do I need?Thanks guys.
http://www.ffcobra.com/FAQ/speedo.html
Per my DIY link................... old topics of interest i saved.
MISC SPEEDO GEAR INFO
---thunderjet302
For those of you who have installed 3.73 gears with your stock AOD you know how hard
it is to find a speedo driven gear to make your speedo close to accurate. In reality a
24 tooth gear would put it dead on but a 23 tooth gear makes it with in 1-3 mph of being
correct. The only problem was that there was no 23 tooth auto trans driven gear avaliable
from Ford. You either had to use a 21 tooth gear like I did and accept the 6-7 mph
difference between what the speedo said and your actual speed or use a 23 tooth gear
for a T-5 which would wear out fast. There is a solution though. I found a 23 tooth
AOD driven gear at Mustangs unlimited. I ordered it and it looks just like my 21 tooth
gear with 2 more teeth. I installed it and vola my speedo is almost right on. Here's
the link if anyone is interested. ---thunderjet302
--turbocoupe50
Cool... But I have the later super coupe AOD with a 7 tooth output.
A 21 works fine for me.--turbocoupe50
Thanks a lot.I'll be looking at the gear I removed from the tranny and see if it'll work,or,just buy a new one.
jcassity,I have 3.55 gears,not 3.73's.I need the little gear for those .
dont kill the messenger,,
No killing.I was just clarifying.I appreciate any and all help from you guys.No worries,all is good.
Check this out. This is what I use to find my speedo gears.
http://www.fordracingparts.com/download/charts/129.pdf
I think the last gear I bought from Ford was 9.00. :D
$9????? wow, you got hosed.
16T gear for mine cost me $3.25 from ford. :flip:
so,,
at 16tooth speedo gear for 355 rear gears?
if you are referring to my post, no. im running 3.27's
also, if you follow the link i posted you will find a calculator that shows there is more involved to pickin a speedo driven gear than just knowing the rear gear set ratio.
in other words, there is not enough information supplied in the original post to determine what driven gear the OP needs.
I got the info I needed from the chart shown.I should have the speedo gear in a couple of days,and I'll post the results and which gear I end up using.