I'd just add one comment...it is important for your front and rear axles to be in the same orientation as they were originally designed to be so the caster angle of your front end remains correct. You can, of course adjust this angle later, but I've had many friends who've altered the rear end only to learn it either made their steering unstable and prone to wander or more stable but much harder to steer. That caster angle ought to be somewhere between 2 and 3 degrees positive unless you have added power steering.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end