7 1/4 or 8 1/4 Highway gears

I am looking for a rear axle with highway gears from 2.4 to 2.76. I prefer a 7 1/4 axle, but would accept an 8 1/4 if I could get the really high gears with it. Prefer someone within 500 miles of Los Angeles, CA because I don't think shipping is going to be worth it. And I don't want to pay a lot for it. Thanks.