so i finally got my gears in. i've had the parts for about 6 months prior and never had the time to get them in until now. Brian at Duffee Motorsports put them in and did an excellent job. no gear whine and no vibrations at any speed. i'm very pleased. i supplied the parts and he charged $350 for the labor on the install, a tracloc rebuild and all new bearing replacement. i reccomend him for any of you guys in phoenix/scottsdale.