4wd questions

[1971 cheburban]

What is the best of the best 4 wheel drives, a chevy or gmc. They're basically the same right? And what is the best axles, i know the Dana 60s,14 bolt, 10 bolt and all thy jazz, but what is the ho52, and any other ones I've missed? Is there a 12 bolt front axle? I'd prefer 6 lug and a half ton spring setup for ride comfort but I'd go with a 3/4.I know the 205 is one heck of a t-case but what is the t-221, NP or What??? Are they hard to find and what kind of parts availability? I've heard some adaptor trouble with the 221, also what do you guys think is the best driveline for a 4wd, I'm thinking hot rod 292,sm465,205, Dana 60 rear, 10 bolt front, lockouts, or 396, sm465,205 and 14 bolt rear, Dana 60 front, lockouts, but then again a big block is for smoking tires, but then again it would a monster, any thoughts or input is appreciated

[Stocker]

HO52 (and HO72) aka Eaton rear diff were used for many years.... tough as nails but getting hard to find some parts for. Many had 4.10 ratio, some 4.56, maybe a couple others but you couldn't get anything that would be considered an acceptable highway ratio. Here's a couple pics from another thread. There's more if you search.

[kwmech]

A lot of questions. First let's start with what you want the truck to do for you?
and what is your budget

[Cobalt964ruf]

Ls3 520hp, 4l80e, np205, Dana 70 front, 14bff rear.