32fire
Does not sound like your overdrive is working. This page will tell you how it should work and how to repair it. Use the back button at the bottom of the page for more info.
Borg Warner overdrive '67 should have a full syncro 3spd Saginaw. If you can locate a 4spd Saginaw, that OD unit will bolt to the back of it with very few modifications. That will give you 8 forward gears instead of the 6 you should now have. The 4spd looks just like the 3spd, but it has three shift arms on the side cover instead of two.
Overdrive
