I took a slightly different approach that the standard A configuration with the top of the shocks nearly touching like everybody does because I haul alot of camping equipment and tools on the way to and on the trail and that configuration doesn't do much in the way of roll out, cornering ect. I'm sure there's nothing wrong with it for most trail rigs, have tried it and it just didn't work well for me and what I expect from my Toyota. I found a configuration that guys use on prerunners and added my own twist to help with articilation...
I scooted the shock placement inboard a few inches to help the articulation issue, put both shocks to the rear of the axle and welded a tube inline with the stock rear mount on the frame with the top shock tabs on it. Looking from the rear of the truck they are vertical ll ll, but they are layed back // if you look from the side. I have found this setup to handle better for load damping and body roll, but since they are inboard a bit they aren't my limiting factor for travel either. You end up using a slightly shorter shock with this setup ( I think mine are 10 or 11 inch stroke) so you don't have them through the bed, but it still doesn't hinder articilation because the shocks are closer together on the axle.
As an added bonus the two to the rear configuration really helps out with axle wrap since it fights the kick back/unloading effect of the axle wrap. This is also something I found out by trying different configurations over the years, not just my opinion.
Here is a tiny pic if you can make out the rear shocks you can see what I mean...
