The mechanical advantage of leverage all the power is increased.
Smoother transitions between gear ratios. Less 'grinding' noise A more pleasant driving experience Less wear on the gear box
Helical gears are similar to spur gear except it's teeth are slant. They have good load distribution, less noise and less wear compare to spur gear.
There are several benefits of using a synchromesh gear box. Smoother shifting, less gearbox wear and less noise are among the top reasons.
my gear box is making alot of noise .
Yes, the Nissan GTR does have a gear noise which is a very common phenomenon.
The grinding noise can be an indication of a bad gear in the transmission. The grinding noise can also indicate a problem with the clutch.
Need a new gearbox. You get a grinding noise only in first gear when you accelerate fast . second gear and the rest should be fine.
* If it is stiff and making a crunching noise when going into gear it means the syncromesh (which is the cogs between gear cogs are worn), If it is making a whining noise in first gear it's a flywheel in the clutch, if it makes a whistling noise while travelling the clutch needs replacing, failing all that the gearbox needs grease or your elbow does.
Only if you're going so fast that you are beyond the torque peak in 5th gear (over 150 MPH, I'm guessing). The reason to use it at lower speeds is for better fuel economy, less engine wear, and (especially) less noise. It's not so easy to hear the radio in 5th gear on the highway.
throw out bearing
Because the water pump on the duramax is gear driven,when you install a new water pump that meshes with an exisiting drive gear you get a noise coming from that area. The new gear on the water pump will have to wear into the existing drive gear. It would be the same if you installed a new ring gear in a differential but left the old pinion gear,you would have a similar noise. It took my dealer changing a brand new pump because it made noise to figure out that the pump was fine it just needed to break in. Hope this helps.
Indirect injection (IDI) produces less noise.