No, I've never done this before or ever had any issues. The only reason I even bring it up is my B&M flex plate instructions say to do so, it says:
"Since the Torqueflite has a wrap-around bellhousing aligning the block to transmission, alignment must be done with the transmission case empty. Rigidly attach the indicator to the crankshaft and indicate on the oil pump bore in the case. Alternatively, you can use a manual transmission bellhousing to indicate runout."
So, Kim, that means I have to either gut my A904 or find a manual bell housing to measure runout?
In the alternative, has anyone ever had an issue with an automatic alignment issue?