Adding Pinion Angle Shims - Tell Me If This Sounds Correct, Please

mopowers said

Based on those numbers, it's fine. Run it.

My only question would be are you positive the engine oil pan rail is perfectly parallel to the transmission output shaft centerline?

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I always thought and have seen that the pan rails are parallel to the crankshaft, which is parallel to the trans output shaft. I've measured it from both the output shaft and the pan rails with the same readings. I don't think I'm totally dumb, but some of the responses here (not yours) sure make me wonder. LOL
I don't have all the books but feel like I've done my best to research multiple sources before posting here. Just trying to make it right as best as I can and learn.