well tomorrow is my Firebird's first birthday and I'm so close to firing up the engine I can taste it. Last night I finished up the exhaust enough to start the engine and started putting in fluids. Got a few leaks but only one is concerning me right now. One was through the vent tube on the TH400 which I believe tells me that I cannot fully fill it without it spinning. Second leak was heater core which angers me because it was a new part but I bypassed it so whatever I deal with it later.
A little history. Got the car a year ago; it's a 67 coupe. Car originally was a 326 with 2 speed trans. I put in a 400 engine. Car had a TH400 in it when I got it. It also had the yolk, driveshaft, rear end in it and this all seems to fit up just fine.
So my third leak is transmission fluid leaking out of a hole in the middle of the yolk. Not sure I can describe this very well but the yolk gets inserted into the back of the transmission. It mates up with the spline in the transmission output shaft and there's an oil seal contacting the outer diameter of the yolk. There's transmission fluid dripping out through a hole in the middle of the yolk. Like fluid must be seeping past the splines and then through this hole. Why would there be a hole and should I just plug it? I can't get a great look at it because the U-joint is in my way. Perhaps that yolk is a bolt on type? I don't remember my transmission output shaft have a thread for a bolt. Once I get home from work I'll pull the driveshaft out and check things over. If I can get this plugged and find some spark plug wires then tonight I'll attempt to fire this thing up.
