I'll soon be putting an MY6 transmission into my 68 gmc. It will be replacing a 4 sp muncie. I understand that the input shaft is the same and the length is the same but I don't know if the output shaft is the same; I think the splines may be different. Will I need a different yoke? If so, what do I need and where can I find it? I'd like to have all my parts ready before I get started. Thanks.
Jeff
