1963 C-10 in NC

[1963c-10]

Thanks for the help Mark. I ran into the same issue myself. I looked in the 63 book and got the same answer. I use new lock washers, and my thinking is that if it were to come loose, I think I'd rather a nut fall into the housing than a 2" bolt, so I think I'm going to reverse it tonight. I've always run the bottom two bolts through to help line up the trans on install, but I've never really paid much attention to which way they came form the factory or if there was a "correct" way to install them. Ive also found a lot of reference pics online, but they all show something different. Half are through the bellhousing and half through the transmission, so maybe I'm just being over picky about it.