Try this first.
I went through this nonsense with my SB and before I went to the trouble of removing and installing offset dowls I tried this and it worked. The stock dowls are set fairly deep, not a lot of dowl is protruding. I noticed there was very little engagement of the dowl in the...
I'm not new to corvettes, done one total resto on a 55, found out quick that's not for me:zzz::zzz:
I also do Muncie and Borg Warner trans rebuilds and sell new Muncies as well as parts.
I prefer the straight axle cars but have owned many different corvettes.