I used Drivetrain Direct, out of California. (1-888-584-4327) I ordered a 3:00, 9" with an Auburn locker and it came about 5 days later. I spent about $875. and am happy with the results. I actually can get a bit of economy as I can run down the freeway, faster at less RPM,(about 2500 at 60). My previous gears were 3:35, too low, for the street. I am using a close ratio top loader and my 305 Euros are 26 and a half inches tall. Good luck!
Tom