Speedometer doesn't work.

[emil77]

Hi guys,

I had a previous thread, where I was having a problem with transmission leak, it still leaks, but I've given up. http://67-72chevytrucks.com/vboard/s...d.php?t=458282

Anyways, so I changed the bullet, it worked fine for awhile, but now my speedometer doesn't work. I went under the truck and played around with the speedometer correction/calibration box, it's not sitting tight, should the box be tight on where it's mounted? I looked at the cable coming from the box, it seems to be ok. Once in awhile the speedometer needle will jump up and down, but mostly it stays at 0mph.

Any suggestions on what to look for?


The box I'm talking about is right above the black circle.