i don't see the advantage of going with a radius arm setup when you solid axle swap.
I would build a true dual triangulated 4-link setup.
nobody has really ran a radius arm setup on a SAS before..
Dont get me wrong, I like leaf springs, but they dont quite cut the mustard for me. With a radius arm setup, just like any linked setup, ya would have no axle wrap and could have really good approach angle. Plus, leafs hate airtime an I like airtime:redneck:. And bumpy roads just suck in most leaf sprung rigs.
the problem is, there is no room to build a triangulated 4-link underneath the front of a rig without building it sky-high or doing a lot of cutting and fittin some stuff is some pretty tight spaces. Also, the geometry has to be just right or triangulated 4-links dont work. That is why many people do 3 links in the front.
Ford ran/runs a radius arm setup stock on Broncos/F150 and on there newer F350's i believe. Toyota landcruisers run radius arms front and i beleive in the rear too. I also believe Landrover does the same. Many people have ran the Calmini frontier/xterra kit. Hell, Rubicon Express makes a Radius arm long arm setup for JK's...
http://www.fourwheeler.com/projectbuild/129_0802_2007_jeep_wrangler_rubicon_suspension/index.html There is even a guy on this board that built a SAS Dakota using a radius arm setup...
http://nw-wheelers.com/forum/showthread.php?t=34666
its not an unproven suspension setup, and it is quite rugged and about as easy to setup as a leaf-sprung rig
As stated earlier though, they do cause some caster change throughout cycling, which is a con.
An, I agree, just use yota hilux axles, there is such a large aftermarket support for them its rediculous an they aren't that hard to find. Plus i guarentee if ya break out on the trail, someone around will have just the right toyota part to help get ya off the trail.:awesomework:
I do agree though that a leaf sprung toyota SAS is pretty easy to do. We have done 2 different SA yotas, only taking a weekend each. Hell, even with my goofy ass nissan, the leaf sprung SAS only took 2 weeks and there was lots of custom fabrication.