I think that maybe it could be the teeth on the starter or which I hope it's not the teeth on the flywheel of the engine. I guess it could just be the starter which is a cheap fix compared to the flywheel and alot easier to fix !!!!
The wheel bearing?
some posibilities are Brake lining worn out(metal on metal), no oil in the differential, Gears could be sheared off...ect. very hard to dianose such a vague question. what kind of 95 gm van? venture, full size, cube? when does it make the grinding noise? if it does it when the brakes are applied then it's the first answer. Good luck!
a grinding sound usually means a broken teeth on either the flywheel or the starter pignion gear. your starter can also be loose.
The differintial is starting to wear...
It is broken.
The ticking noise is the metal cooling.
Sounds like your battery needs replacing.
It sounds a lot like you have a brake problem. You need to get it checked out before any more serious damage is done, and it costs you a fortune.
the clutches in torque converter
Noise in the rear axle of a 1995 Chevy G20 van could indicate several issues, such as worn bearings, a failing differential, or low gear oil levels. If the noise is a grinding or whining sound, it may suggest that the gears are damaged or that the axle needs lubrication. It’s essential to diagnose the problem early to avoid further damage, so having a mechanic inspect the axle is recommended. Ignoring the noise could lead to more severe mechanical failure and costly repairs.
It depends on the noise. If it is a squealing noise it is probably a loose belt and needs to be replaced. Check the back of the belt if it is "glazed" meaning slippery and shiny then replace the belt.
It is likely to be the power steering pump complaining that the power steering fluid is low.