My shift module also went in my US Gear unit. The truck repair place I went too found that a winch motor relay worked in its place, however it would not interface with the shifter mounted shift buttons, so a new 3 position switch had to be installed to activate the relay. The original shifter still works, in that it will indicate what mode the transmission is in, high or low.
I will try and find the old invoice to find the part number they used.
Per Mare, Per Terram and may all your campaigns be successful.
“It’s a recession when your neighbor loses his job; it’s a depression when you lose your own.” "Harry S Truman"