Well, let me start off by saying I've used the search button on hondaswap.com, honda-tech.com, and google. I have yet to find an anwer... and transmissions are my enemy. I got onto the highway with my daily driver (1997 Civic SI) on Wednesday, accelerated to about 90kmph and headed towards the city center. All was good until I let off the gas. It felt like somebody was reaching over and yanking my steering wheel violently to the right. If i accelerated or pushed the clutch in, it was smooth. If I downshifted to slow down it would violently jerk to the right no matter what speed or gear I was in. I pulled over, checked my ball joints, tie rods and tire pressure. They were all fine. So I hopped back in and proceeded to limp her back home. I was thinking it was a bad cv or motor mount but everything seemed fine. So, after researching and finding nothing overly useful, I put the car up on jack stands and started it up. Then I put it in gear, got out and watched my wheels turn... well WHEEL. Thats right, only one was turning. I've never come across this on one of my cars before. So I need to know what you people think. Is it the differential? I'm guessing it's quite serious.