4.10 gears really BLOW

[72dually]

Ive owned my truck for about 2 months and have only driven it basically in town, but I finally took it on a small journey, about 60 miles each way today to look at another shorty for sale at an impound yard, what a joke, that poor motor was RPM'ng out. Sammy hagar says it best, "I cant drive 55"
Now I bought this truck because it was a 1 owner, cheap $1000, low miles, and solely for towing, but it literaly drove me crazy driving that slow, Im use to big blocks w/3.42's that you can drive at least 75, but this poor motor was screaming @ 70mph, I dont know if I can handle these gears.
My 69 camaro had 3.73's but at least I could go with the flow of traffic
Im not even sure I need these gears for towing, 3.73 would be a better choice IMO