I AM LOOKING FOR THE SHAFT PART THAT STICKS IN THE SIDE OF THE TRANSMISSION SO I CAN HOOK UP THE SPEEDOMETER. i CAN'T FIND ANY INFO EXCEPT GEARS FOR CHANGING THE SPEED TO GET IT ACCURATE.

i AM BUILDING A 34 FORD STREETBEAST AND USING A 351 FORD MOTOR AND
AOD TRANSMISSION ABOUT 1987 OR 88.
DOES ANYONE KNOW WHERE TO BUY THIS? JUNK YARD i GUESS