Here we go again,Rockwell Transfer case shifte mount on a TH350

[63chevy4x4]

I built a shifter bracket to mount on my auto tranny crossmember in 61 gmc 4x4 to shift the rockwell transfer case but its been bothering me and i wana re-do it. I found this bracket online, there sold by a demolition derby outfit. Im after the bracket to mount on the tailstock bolts, anyone have plans for something like this or will I have to bite the bullet and buy one? thanks!