Just to clarify, you have the SH model? If the SH model needs a different axel/half-shaft than the base model, but the SH half-shaft isn't compatible with the Accord trans, maybe they used an axel for the base model Prelude w/o ATTS :shrug:


This is just a shot in the dark, but did the new Accord half-shaft have the rubber donut on it, the "damper" or whatever that's supposed to prevent vibration. They're normally on the longer of the two half-shafts (driver's side I believe in your case). The damper has a specific spot on the shaft it's supposed to sit too. If it's on there but is nowhere close to that spot it might vibrate.