T15 transmission component question

[hrowzie]

78 CJ7 w/304
T-15 trans
Getting ready to start the rebuild on the T-15. On the top cover plate near the front of the T-15 is 2 switch components. Im certain that on of them is the reverse switch. The passenger side switch has 2 flat prongs on the top of it. The drivers side has 1 nipple prong on the top of it. My question is which one is the reverse switch and what side of the trans should it be on. Also, what is the other component for?

Thanks

 

[hagar]

The one on the drivers side is called "transmission controlled spark switch".
It's part of the emission control system; google "transmission controlled spark" for more info.
Passenger side is the backup light switch.
And....your transmission should be T-150, not T-15, unless T-15 has been swapped in.

 

[hrowzie]

That’s what I though also but the ID number stamped on the side is a T-15. If it was swapped in it was before my time. My cj also doesn’t have have any emissions equipment on it. It hasn’t all been pulled off again before my time. If so, does that trans controlled spark switch need to be used?
Thanks for the help so far.

 

[hagar]

No, just ignore then it as it's plugging a hole.