Mine is a 78 280Z. It had a 4 speed tranny when my friend bought it a year ago. He replaced that with a 5-speed. When I bought it from him in Feb I replaced all fluids, including the transmission and differential fluid.

The a/c went out in June, so I started driving with the windows down. It was then I noticed a lot of transmission whine, especially when I am by some barrier like fence or wall. It quits if I disengage the clutch and just coast. It drives and shifts fine, even at different speeds.

Have I got a problem, or is this just a noisy transmission?

Davey G

Anybody?

Does it whine in all gears or just in the lower or higher gears ?

I had a noisy 4 spd in a 71 240 and was

told it was a spun bearing. I replaced all

4 bearings and the noise quit. I didn't think it

hurt reliability though. Oddly when I got the

old bearings out and spun them by hand I

could not tell which one had caused the

noise.

I had a noisy 4 spd in a 71 240 and was

told it was a spun bearing. I replaced all

4 bearings and the noise quit. I didn't think it

hurt reliability though.

Sounds like I may be experiencing the`same.