I can't find the t-case computer module

[Trucker mike]

Can someone help me find my t-case computer module. I have a 1986 Ranger SXT super cab and I have looked behind the driver side jump seat and under the dash. I found where the wiring harness enters the cab from the t-case under the driver's seat.

 

[RonD]

Should be under jump seat, picture here: http://www.therangerstation.com/tech_library/4wd_control_module.html

Might be behind plastic cover at rear of cab, drivers side