I just replaced my peg leg, 2.73 rear with a 3.23 posi. However, I forgot about the speedo gears. The question is, do I need to get both the drive and driven gears or just one? And which one?

Thanks.

 

I'm not sure where it came from, but I have a speedo calculator(it tells you which gears you need). I put it here for temporary download:

http://chevy.homeip.net/speedo/speedo.exe

 

Well it's not so much which part numbers I need just yet. I was still wondering things like is it a electric or cable? And do I need to replace both or just one?

Is this something I can do myself?

 

Well it's not so much which part numbers I need just yet. I was still wondering things like is it a electric or cable?
Look at the tranny and see if you have a cable or wires.

And do I need to replace both or just one?
punch in your old ratio, then punch in your new ratio and see if the part numbers are the same

Is this something I can do myself?
Depends on your ability I guess.

 

They're coming out of the tail shaft of the tranny right?

 

JUST FORGET THIS WHOLE POST GUYS. I HAVE FOUND WHAT I NEEDED.

Thanks though for your help.