[55dude]

the gm steering boxes are either a 800 series or 605. you have the common 800 series and 99% of those will fit your application. someone has one laying around for next to nothing. replacing it with a standard ratio box you won't notice the difference unless your going to road race your truck. remember that by puting the subframe in your truck you have altered the original steering dynamics of the box anyway,front to rear weight ratio,center of gravity.....