Thank you! It has been driven to Seattle in the rain and I spent and hour on the lift cleaning the entire bottom. It does look like new! I am a bit confused by EZZZZZZZZZ comments. Why are you telling me this? I am still trying to figure out why it leaks. I know where the oil is coming from and why the oil is leaking out the speedo hole. This tranny was completely rebuilt. We put new bearings and syncros. We also put in new seals on the front and rear and the shifter rod. These seals are tight. The only problem is the speedo.

I have the same leak in my 71z. I also changed some items I thought would help but it still leaks! Next I will have to check my headlight fluid and muffler bearings. HEEHEE

I will try one more time to stop the leak. I will remove the speedo and replace the inner and outer "0" rings. Maybe the new "0" ring is split or damaged during installation. I will look at everything and give it one more shot. I'll let you guys know.

I am taking my Z to PIR this weekend for the vintage trans-am. We have a Datsun Coral and will take a spin on the track. It will be good to see the old cars and racers!

I had a similar problem. A slow leak from the cable. I ordered new O-rings from the dealer, and the leak got worse. It appeared that the diameter of the dealer ring was smaller than the original. The replacement ring did not full up the entire groove. I went to an industrial supply store and found a ring the same size as what was on the car. It ended using a standard not metric, but it hasn't leaked yet.

good luck

I will try one more time to stop the leak. I will remove the speedo and replace the inner and outer "0" rings. Maybe the new "0" ring is split or damaged during installation. I will look at everything and give it one more shot. I'll let you guys know.

I am taking my Z to PIR this weekend for the vintage trans-am. We have a Datsun Coral and will take a spin on the track. It will be good to see the old cars and racers!

I am also, see you tomorrow. Gary

I did notice the "0" ring was small in diameter. I will give your idea a try. "0" rings are cheap and I can certainly try a larger/thicker size. I hope this is the problem. I'll let you know!