Pinion angle question

dartfreak75 said
No I didnt picture it but I did it both ways up and down to check my work and got two different readings. I leveled the blocks and set the flats of the arch on it and got like 6 degrees the flipped it around to double check and got like 8 or 9. That's what's pictured. That's why I am so confused how I get two different readings it should be the same up or down

The difference might be because your pinion may be rotating either way between measurements. If you look at the picture of the pinion measurement, I can't tell if the angle finder (and yoke saddle) are plumb. Are they? Make sure it is so you can get repeatable measurements.