2008 Z750 bad grinding noise in first gear

internal gear / clutches problem

If hydraulic clutch could be a leaking line or bad slave or master cylinder.

My advice is don't causecany more damage more than necessary. Sounds like it is going to collapse , suggestvyou have it checked out by the professionals. Think you are going to need a replacement unit

You got it, Bad throw out bearing!

Sounds like the thrust bearing is worn to the bleep. Though I suspect it's not Synchromeshing. Some part of the Clutch mechanism failing critically.
See http://en.wikipedia.org/wiki/Manual_transmission#Synchromesh
http://en.wikipedia.org/wiki/Clutch
Did it run out of Oil? BUT then maybe damage has been done to both the internal of the Gearbox as well as the clutch, so yeah STOP driving it before more damage that can set you back a fortune

Is your 2003 Subaru Outback automatic or manual transmission?
If it is automatic, then your transmission sounds like it's malfunctioning into the reverse gear as it is not aligning properly.
If it is manual, then your transmission sounds like it may have a bad clutch or bad reverse gear.
Either solution is not cheap. Good luck.

Usually, starter grind is either incorrect pinion gear and clutch ring engagement, or a damaged overrunning clutch drive assembly.

Hi bosslady15,

First of all I think I should say that clutches do not make grinding noises - but transmission gears do.
However, a clutch that is not disengaging properly can make the gears grind when trying to shift from one gear to the next. Also a common source of noise is the clutch throwout bearing. This will make a "grinding" or "growling" noise any time the clutch pedal is depressed. In either of these cases, the only solution is to replace the clutch, throwout bearing, pressure plate and pilot bushing. These all usually come in a clutch kit. If you have an hydraulic clutch with an internal slave cylinder it is recommended to replace the slave cylinder as well and also the flywheel on on vehicles. I'm sorry I cannot be more specific because you did not mention what type of vehicle we are talking about here.

you may need to have your clutch cable adjusted ... it is most likely not releasing the clutch fully and grinding against the flywheel

If it's metallic sound you are loosing teeth on a gear or two.  This is caused by lack of lubricant or simply fatigue of the material of the gears.  Don't use it, you can get metal flakes in your food.

Take it in to a repair shop and have it fixed.  The money spent is well worth it because if done correctly will last another 12 years.