I bought a 97 TJ 4.0 with 109k. I noticed it started grinding in first when I takeoff. I'm new to the jeep scene. Just traded my sport bike for the wrangler so I don't quite know the terminology yet. But when the clutch is almost fully let out is when the grinding happens. It's 3 or 4 intermittent grinds. It's almost like a knocking sound. I honestly have no clue what it could be but it doesn't sound like its supposed to be there. Any ideas?