Upon even further investigation, I believe you, Chris, are correct. The spindle fits very snugly. The bearing is bad again - must have been damaged in installation or a bad egg to begin with. When I first started driving it after replacing it definitely wasn't vibrating and making the noise it does now. Warantee FTW. I'm gonna have to ask DamageX to use his press again (check your email!
) As a result of this setback, GGP prospects for this project look pretty gloomy. I have less than a week to drive 1000 more miles of break-in, get my kill switch in order, do some aero-modding, and fix any other kinks that come up such as my rear right wheel's camber being visibly off. Hopefully nothing a stack of washers won't fix.