I have a 98 jetta i bought. Its got 97k mi and has the 2.0 engine with a 5 speed. It drives fine in all forward gears, but when I go to put it into reverse it engages and when I start to let off of the clutch it pops out and grindes. If I hold it in reverse I can drive backwards without it grinding. Wondering if it could be a linkage issue and if so how would I go about checking it to properly diagnose what's going on? Thanks!