[_DX3_]

I do believe any steering from any 82 series cub will work.
682, 782, 1711, 1811, etc.

Someone else may help out, but I even think one off of a QL will work ie, 1250, 1450, 1650.

EDIT: Just looked on Cubcadet.com and they list the models that use that steering as:
1050, 1204, 1210, 1211, 1806, 1810, 1811