That steering conversion has been around for a long while
On 40's it was first call the scout conversion when folks used scout boxes with a 3 ear mounting.
Now that 60 series steering boxes are fairly cheap and more readily available that's what most folks use since the scout boxes are friggen huge.
See you on the trail
Couple o' FJ40's, BJ70, PZJ77, UZJ100, TDI