i tried searching but can't find what i'm looking for. tried all over google with no luck either. i got an 85 chevy 1/2 ton and i'm trying to find pics on where to drill and tap for hydro assist. from what i've found none of the pics match my steering box. are the locations the same for 4wd and 2wd boxes? i'm not looking to tap the top cap. any help is appreciated