You will have to outboard the springs on the frame and beef those areas of the frame up.

If your running the stock SUA from there I would think it is just bolt it all up and make a tie rod and drag link.

 

I ground down the c's set the caster and rewelded them on.

 

Scout II axles are not necessarily a bad choice to start with, but there are some things to consider. Knuckles are unique along with the 8-bolt spindles. Not a big deal, but parts are less common. The biggest issue with them is that they have very little to no caster built into them. Cutting the weld and rotating the C's would be a good idea and would provide better handling.

 

Alot of guys use the cj D30 knuckles

 

I used scout 44s. My cut and turn is in post 20 http://www.pirate4x4.com/forum/jeep-willys/968398-silent-hunters-willys-build.html

I also used dodge ram knuckle, spindles and brakes 5 on 5.5.

 

centered rear diff vs offset?

 

I would use the dodge stuff to, its stronger. I hate my scout hubs but their staying till they blow :nuke:

 

The reason I am using an old Warn internal style hub conversion- I hate the CJ 5-bolt locking hubs. Seen too many failures.

That being said, the advantage to the CJ stuff vs. the Dodge/Chevy/Wagoneer spindles and hubs is the distance from balljoint to wheel mount surface(WMS). If you want narrow axles/WMS to WMS then the CJ stuff will buy yourself some more axle tube to play with. Axle tube real estate can be important for spring mounts or link mounts if you ever decide to link it up.

The advantage to the fullsize stuff Dodge/Chevy/Wagoneer parts is they are much more available, stronger parts, bigger bearings, & internal style hubs etc.