It's called, NO CENTER DIFF, it fucking broke I'm guessing. I was going down the road to my moms house in Rockport, I saw her going the other way so I flipped a bitch(u-turn) and then I went to take off and it seemed like my clutch went out but it still pulled a little but took alot to get it going. If I get it to really high rpms it will shutter really bad and then lock up and take off sorta. This sound like a center diff? The speedo still works and when I hit the gas it'll register however fast the car SHOULD be going but the car is hardly moving. Any thoughts?

I was just told it's most likely my Viscious Coupler. It's a JDM tranny and I guess the front diff ring gear is different ratio than the USDM one.