rear axle advice

[AZ 67 C10]

Thanks for all the info. I originally planned on 4.11's but it seems like a few of you run 3.73's. With the amount of freeway driving in Phoenix I might give the 3.73's a try.. One other question is about how much to shorten the axle for larger tires. I haven't given tire size much thought other than running drag radials. Those of you with shortened axles what size tire do you run and how many inches did you have to cut off?