Originally Posted by Ol69Beater

I also have the same trouble - no first gear until I let the engine warm up and then it takes quite a bit of throttle to finally get her going. I replaced the fluid and filter and no leaks. I read in the Chilton manual about a band adjustment on the C6 but haven't tried it yet. Any ideas? It's a 1977 f150 (400M) with a C6