I recently swapped a used C4 transmission into my 66 mustang and immediately found that the car had a lot of difficulty shifting gears. Even when trying to do it manually it will rarely leave the one gear. Me and my brother have been tinkering with the shift linkage hoping that would change it but it doesn’t seem to be doing anything. He did comment after adjusting it that he thought it still felt like it needed more adjustment, which still gives me hope that that is the issue. I was just hoping some people with more experience on this topic could help us flesh out the answer to why it won’t shift gears, even at high rpms. Anything helps and we really appreciate any wisdom you guys have!
Side note: when I mean it occasionally shifts I’m saying that after really rowing through the drive gears it’ll change em.
Side note: when I mean it occasionally shifts I’m saying that after really rowing through the drive gears it’ll change em.