I bolted the torque tube to transmission this weekend on my 1940 Chevy 1/2 ton pickup with 216. After getting it put together, I noticed a hairline crack at the rear, top of the transmission-see attached pic. I am unsure if this happened upon assembly or if it was there previously. I did not notice it when I had it on the stand. What is the recommended repair method? Brazing or other? Also, is this common? Has anyone seen this before?
