Diesel_brad
Dunce
i want to know this too for my powerstroke swap![Sweet ;Sweet ;Sweet](/styles/default/xenforo/smilies/Thumbup19.gif)
![Sweet ;Sweet ;Sweet](/styles/default/xenforo/smilies/Thumbup19.gif)
you need to check out this threadwell, like you said, figure out how many teeth are on the ip gear and make a wheel the same. u could also count the teeth on the flexplate ring gear, if its close(not off by more than a few teeth) u could put the sensor in the inspection cover thing(if its an auto).
if you gonna use the stock tach it might just be easiest to get the gear cover with the hole in it for the sensor. i often thought of putting the autometer tach in my stock cluster, but im ditching the old 6.9 for a cummins.