gearbox whine R33 GTST whine, most common gearbox issues?

[Torques]

My gearbox developed a whining sound in all gears. (louder under load)

I changed the oil and there were metal shavings at the magnet. (more than what you'd expect to see )

After the oil change the whining noise almost halved and is barley noticeable.

Shifting is smooth.

I suspect either the counter shaft or input shaft bearings, is that a common thing with these transmissions?

Any other usual suspects?

The box has about 70K on the odo, has never been abused except for the occasional drag run.

Power wise the engine makes about 290ish rkw

Cheers

 

Attached the picture of what the magnet caught.

 

 

 

 

Edited October 21, 2017 by Torques
added picture

[Dobz]

So the box was rebuilt 70,000km ago?

[Torques]

no, the car has 70k on the odo

[Dobz]

Ok, the car has likely done double that distance and the previous owner/s may not have been so kind on the gearbox. The rb25det gearbox are well built with lack of maintenance and poor driving being a culprit for premature damage. Poor rebuilds are also a factor.

[Torques]

The car's odo is genuine.

I bought it at 63K 6 years ago as the first owner.

I got the Japanese factory logbook, exporter certificates and so forth.

Though paperwork can be falsified the physical appearance support that.

Headlights and windscreen are in mint condition , so is the interior (pedals, fabrics, etc)

Car looks mint from below as well ..

You don't have that with higher mileage cars.

I doubt the gearbox was ever touched, but of course you never know.

 

 

 

Edited October 23, 2017 by Torques