[arcade_maniac]

keep 77 40 axel w/ 4.11 and plenty of spare parts,or
set 83 fj60 axels w/3.73

I see both listed by builders, but is there a better? lenght, strength, the same 1/2 ton vs 1 ton difference!

pros and cons...

[slvrbck]

UUUUMMM, True on both accounts....

[calstyl2]

Read the Faq.......

[Splangy]

I'd say it's really a choice between 3.70 or 4.10!

[Poser]

Originally Posted by arcade_maniac

keep 77 40 axel w/ 4.11 and plenty of spare parts,or
set 83 fj60 axels w/3.73

I see both listed by builders, but is there a better? lenght, strength, the same 1/2 ton vs 1 ton difference!

pros and cons...

What are you looking to do with your Land Cruiser?

What is your intended use for this vehicle?

[Combat Chuck]

I'd say keep the 77 axle, regardless, and if you need a better road vehicle, put 3.73 rings and pinions in it.
60 axles are a little longer than 40 axles, but only on one side, and so you'll have to mod them a bit to make them fit. (move the spring mounts)
The 77 axle is fine spline, so it'll accept any LC-type additions.
But, as Poser said, depends on what you're doing with it, and what's been/being done to the truck.