Its not a Mod, its a fix for those of us with loose stearing due to the steering box being worn out.
There is an adjustment bolt on top of the steering box. It has a lock nut on it and then the top of the bolt turns after you loosen the lock nut.
So what I have been told is you loosen the lock nut, then take the bolt, loosen it as well (May work backwards from a normal loosen tighten)
But dont loosen it much, just to basically work the bolt around a little. Then you tighten the bolt until it is snugg then back off just a little (1/8th turn or so) Then tighten the lock nut and your all set. This will not fix severly worn out boxes (like mine) but for most of us it will work until the box gets real worn out.