37 steering box issue

[cbabek]

All,

I have a 37 gemmer style steering box in a 36 and I am having some backlash issues.
when the sector is in the middle and the gears are adjusted with minimal drag - when the wheel is turned to either left or right there is significant play in the box.
I replaced the worm gear that looked a little worn with the same 18:1 gear.

same thing

about 5/16 to 3/8 play at the end of the pitman arm.

Pulled it apart again - gears not meshing tight when turned away from center

not sure what's going on here

is this not the right sector for this box ? are there other ratios other than 18 for this box. ?
II cant imagine this is correct.

any help would be appreciated