Reverse lamp

I just bought these for my trailer:
https://www.amazon.com/Funtion-Round-White-Back-up-Light/dp/B016YNQN98

Probably going to get more for the tractor.

Seller is good and ships fast.

 

Not same transmission, but plug would be in same area.

 

Plug is easy to access if you can remove the trans access cover. Mine is off as I am finishing rewiring in that area. And, yes, I am installing a reverse light. Here are some pics...

View attachment 224436



access cover removed...



reverse switch



The plug is the slotted one just to the right and back of the shifter. The switch has a ball that gets bumped by a reverse shift linkage just under the plug.

 

It should be right about there, just behind where the shift tower bolts on to the top cover.

 

In my sig - 1978 with a transplanted RTOF-9513. This was not stock. It came with a detroit and some twin stick setup, I think. All original wiring has been torn out during my rewire, so hard to tell...

My 1978 Service manual wiring diagram shows backup lights fed from the switched accy breaker, feeding the backup switch and then to a pair of lights on the back of the truck, for what it is worth.

I have the original build sheet, so I will take a look to see if one was installed.

on edit - read the build sheet. Only shows tail lamps on the list. In the trans area no mention of installing a reverse switch. So, no, don't think it had them from the factory. Must have been an option for jurisdictions that required them.

 

this is all i could find right now, so for me, i'd assume it means all lights...

No. §393.11 requires that lighting devices on Commercial Motor Vehicle CMVs placed in operation after March 7, 1989, meet the requirements of FMVSS No. 108 in effect at the time of manufacture. The National Highway Traffic Safety Administration (NHTSA) has issued interpretations which indicate that the use of amber tail lamps impairs the effectiveness of the required lighting equipment and as such is prohibited by Federal Motor Vehicle Safety Standards (developed and issued by the NationalHighway Traffic Safety Administration) (FMVSS) No. 108 (S5.1.3). Since National Highway Traffic Safety Administration (NHTSA) does not allow vehicle manufacturers to install amber tail lamps, the Federal Highway Administration (FHWA) has concluded that the use of amber tail lamps on vehicles placed in operation after March 7, 1989, is prohibited by §393.11.

In the case of vehicles placed in operation on or before March 7, 1989, §393.11 requires that vehicles meet either the lighting requirements of part 393 or Federal Motor Vehicle Safety Standards (developed and issued by the NationalHighway Traffic Safety Administration) (FMVSS) No. 108 in effect at the time of manufacture. Prior to the December 7, 1988, final rule on part 393 (53 FR 49397), amber tail lamps were prohibited by §393.25. §393.25(e)(3) (in the October 1, 1988 edition of the Code of Federal Regulations) required all rear lamps, with certain exceptions, to be red. Since tail lamps were not included in the exceptions, the use of amber tail lamps was implicitly prohibited. Therefore, a vehicle placed in operation on or before March 7, 1989, must not be equipped with amber tail lamps because the use of such lamps meets neither the lighting requirements of part 393 nor FMVSS No. 108 in effect at the time of manufacture.

Regulations Section