Yep my first build, and I'm sure I've gotten myself into a deep project but its been fun so far, I don't regret anything... yet. I screen shotted the original Craigslist, thats about all I know about the engine, I could answer a few questions about it if you had any specific but thats how its built. It was originally an auto and one day I may put it back to an auto but for now its a 4 speed out of a different 69 barracuda. I have 14 inch mopar ralleyes on. I forget tire size but the backs are about an inch or two bigger than the front. Rear end it says in the add but its a 8 3/4 in a 4;10. Does this help?