WHAT YOU ARE VIEWING IS A OEM FORD SMALL BLOCK 4 SPEED TOPLOADER INPUT MAIN DRIVE 10 SPLINE 1 1/16" WITH 23 TOOTH, WIDE RATIO 2.78 1st GEAR RATIO. THIS IN NICE SHAPE. THE ENGAGEMENT TEETH ARE IN VERY GOOD SHAPE FOR ITS AGE. WHAT YOU SEE IS WHAT YOU GET. THIS WILL BE SOLD AS IS, WITH NO RETURNS. LOCAL PICK UP IS WELCOME. IF YOU HAVE ANY QUESTIONS PLEASE FEEL FREE TO EMAIL ME.