i don't have a clock, and the wires on the old radio-8 track don't match.so i don't know either what they are for. I will have to trace and see where they go. Thanks for help.

ok,i thank you. Nice talking to someone that knows more about these cars than i do.i,am still learning. Should be a pro by the time i get this car finished.

more stuff to think about. Found two more of these plastic cogs took them off of two other speedometer cables that came off mustang two,s. the one that's on my car has 18 teeth, the green one in the pic has 17,and the red shorter one has 21.the numbers are stamped on the ends. I have been searching over the net ,but nothing there about these cars. Maybe i do need the shorter one. not going to worry about it now, but a some point when i do take it on the road and speed gauge doesn't work, ill have to confront the problem. Hoping it will work fingers crossed.
The big question would be the drive gear's diameter compared to a T5, but I'm sure the gear pitch would be compatible if you need to buy a replacement driven gear to make it work right.
classicautoreproductions.com
ok,yes that could be the problem where it is the original. i see classic auto reproductions sells them. I do plan on replacing that circuit board, and putting led lights in with new lamp holders as well. Also could you post a pic to show exactly where the one horn i believe mounts to on the front drivers side.just bought a new one, never seen it on when i started restoring, so don't know where it fastens too. Would be nice to put it where it should be. Thanks again for you help
Cam + Exhaust + Throttle Blip = Horn Optional
That is one [clear] advantage of the Fox over the V.![]()
The speedometer gear in the picture is one for a C4 or T5 for sure. The C4 is original to the Mustang II the T5 not, but both transmissions share the same speedometer gear. Because you have a original manual car, it could use a different speedometer gear... But I do not know if that's the case or not. At least 1gen Mustangs had a different speedometer gear for stock automatic and stock manual transmission...i took some pics,i think i have the right cable. This is a pic of the plastic piece on the end of it that meshes with the yellow one inside the transmission, and the the threads are good,not worn or chewed up. Mine is a 78- 4 speed manual transmission. is the plastic piece on the end of that cable all the same, or is there different ones for automatic and manual transmissions. When i pulled the cable out of the transmission, I turned it with a battery hand drill. The needle on speed gauge worked good. So cable is fine. When i had the back of the car on jack stands i tried the all the gears. The speedometer didn't move, but i dint really give it any gas either.so maybe that way the needle didn't move. This is what i am thinking .any thoughts .........