Need a measurement on a 904...please!

I would appreciate if someone could measure the distance from the end of the trans yoke seal to the end of the output shaft. See my little diagram below. I am having Inland Empire build me a driveshaft and they needed this dimension. I cannot get to mine right now as it is in the car with a shaft in place. Thanks.......!!View attachment 1714976700
on mine, output shaft sticks out 1/2 " from housing, flush to the out side of the seal.