My 2000 Legacy Outback is a 5-speed. And first gear jerks the car around if I don't have the RPMs perfectly feathered until the clutch is all the way out. And fourth gear grinds 85% of the time. I've found that if my RPMs are around 3,000 it doesn't grind, and if I slip it in slowly it doesn't seem to grind as often as well. I don't know how to check my transmission fluid, to be completely honest.. This car is a lot newer than anything I've ever owned before, and I'm somewhat intimidated by the modernity of it.
Any advice on what's causing these issues, how to fix it, and how to check the tranny fluid..?