Doesn't matter anyway, cause it won't fit, and I don't know of a spool for the front.
You said it yourself "besides that the locker ratchets" that is exactly why it works in the front. On an ARB, you only engage the front when you ABSOLUTELY need it, and usually , if not always disengage it on turns. Don't get me wrong, with good power steering and such, you can turn the wheels... but with all four wheels pulling the same speed, the rig just doesn't want to turn AT ALL.. even full cranked one way, they will often go straight ahead... right into that tree you are trying to miss (sound familiar anyone?)
fully locked fronts are a B I T C H to turn... you can always drop out of 4wd to turn, if you say, weld the front (and many have) but then, unless you have a 2wd low kit, or a twin stick from Stan.... you will lose your gearing.... all in all, like Mike says, it just isn't worth it to weld the fronts solid on a kick.... and even then, with the fronts locked together, they STILL have to turn at the same speed, so even though they are not pulling, they are still sliding. fully locked fronts just suck when turning... so unless you get out and unlock a hub everytime you want to turn on a surface with ANY traction at all.... you got a problem.. and when it's really slick... LOFL.... you won't go anywhere that you thought you would be going,.... LOL...been there....