So a while ago I swapped rear ends from a 3.08 open to a 3.42 posi. I has been dealing with the speedo reading incorrectly for a while, but my speedo has cmopletely stopped working so I want to get it back to reading right (or at least close to it). So i know i need the 7 tooth blue/purple drive gear and the 19 tooth white driven gear. I have found plenty of places to get the 19 tooth driven gear, but the 7 tooth drive gear seems to be completely nonexistent unless it is in a car on the road somewhere. Does anybody have any leads on where to find them? or have any extras laying around?

 

Try here.

http://www.transmissioncenter.net/sp...____va.htm#350

I HIGHLY recommend replacing your existing chinesium driven gear housing ("bullet") at the same time, with the steel one on this page.

 

The 7 tooth drive gear is common and available.
Don't let two minutes of attempts by a counter parts guy make you think something is unavailable.
14071731 7 tooth drive
14053347 9 tooth drive

 

That page says they are out of stock on the 7-tooth gear. And I have personally spent hours on the internet looking for that part unsuccessfully, searching by part number and the part name.

 

So PM me your address and I'll send you one.

 

I did manage to find one of these gears, but if you happen to have a surplus of them, I wouldn't be against keeping a spare.