I stand corrected. The 340 will have the larger pilot. Thanks for pointing that out. I guess in my starting of the senior years I must be missing something. What adapter bushing are you talking about. Again, I may be wrong, but I've been under a lot of Mopars, and the only (factory stock units) I've ever seen with a bushing in the crank hole was for a stick car. To the best of my old memory, automatic cranks never had a bushing in them.