removing frontier brake leveler(?)

I am new to Nissans be please be kind.

That huge mess of crap that the Nissans(I believe the old hardbodies had also) behind the rear axle for the brakes. Is there a tutorial online on how to remove that thing? I helped a friend a long, long time ago remove it on a hardbody but I can't get ahold of him and I wasn't paying enough attention to remember how to do it. Any and all help is greatly appreciated.

Thanks,

t