tranny speedometer gear

Hello all, I have posted only once and it few months back, so i figured it was appropriate to post here again. I have a few questions concerning my 2000 V6 3.8L Camaro I mentioned earlier back about having tranny issues, and i ended up haveing to replace it with a rebuilt 96 tranny...

Help! I am currently restoring a 1969 Camaro with 4 speed. I recently installed a new 140 mph speedometer. The old speedometer was off 10 mph slow at 65 mph. The new one is still off so I changed the speedometer cable and installed a new 24 tooth gear on the end of the cable. It is still...