transmission/gearbox questions

Three questions :

I believe the two wire sending unit is for the reverse lights. What is the single orange wire to the far left indicate ? Thanks

What information does the transmission tag provide ?

While I'm at it....when reassemblying the covers does the transfer case metal frame go over or under the large housing that covers the gearbox ?

Thanks !!

 

it tells the model and application of the trans
13-02-046 = Borg-Warner number
5351073 = Jeep part number for trans assy
in this case, the number tag tells me it's from a 1973/1974/1975 CJ model
T14A transmission, 3 speed full sunchro, used behind 232/258 staright six engine

 

If I recall, it's referred to as the "transmission controlled spark switch", an early style of emission control.
I believe it's only function is to sense when the Jeep is in high or 3rd gear; this sends a signal to another electrical switch, which then controls the amount of ported vacuum going to the dist vac advance; the theory being that at highway speeds, you don't need as much/any spark advance.
that's what memory recalls anyway
a factory service manual would go into more details

 

sorry, no help on the floorboard panels

 

You mean the ring that holds down the transfer case boot? IIRC it goes on top. Yes, 2-wires is backups, and 1-wire should be TCS.

 

Tim, that's the one. I thought it went on top, but wasn't sure..

You guys are great, thanks for all the information. Another little project completed.