NUTRAL SAFETY SWITCH

[vso737]

I finally took care of my transmission leak. It was coming from the Neutral Safety Switch. It appears that the NSW does NOT come with the "O" ring that is required to make it function properly. The NSW vendors ONLY supply the switch and the CUPPED washer that houses the "O" ring.
NEEDLESS to say, the mechanic (CROOK) that swapped over the TF727 for the four speed did NOT know this or did it on PURPOSE so I would visit him more often. I would bet on the latter. In any event, I sent away for the washer to this NSQ and the vendor ONLY supplied me with the cupped steel washer. Had no CLUE that the unit takes an "O" ring as well.
Hope this little bit of info will keep someones garage floor free of trans. fluid. I found out by a fluke after seeing a picture in a MOPAR manual.
LG,
Mike

 

[Rumrunner]

I finally took care of my transmission leak. It was coming from the Neutral Safety Switch. It appears that the NSW does NOT come with the "O" ring that is required to make it function properly. The NSW vendors ONLY supply the switch and the CUPPED washer that houses the "O" ring.
NEEDLESS to say, the mechanic (CROOK) that swapped over the TF727 for the four speed did NOT know this or did it on PURPOSE so I would visit him more often. I would bet on the latter. In any event, I sent away for the washer to this NSQ and the vendor ONLY supplied me with the cupped steel washer. Had no CLUE that the unit takes an "O" ring as well.
Hope this little bit of info will keep someones garage floor free of trans. fluid. I found out by a fluke after seeing a picture in a MOPAR manual.
LG,
MikeView attachment 36284

After a three year build on my 68, The only leak (and it's very small) is out of the neutral safety switch.
It didn't have an O-ring after the rebuild so I added one and it still leaked. I spent quite some time on this and finally gave up. The cupped washer must be the difference.
I asked the forum once about this and was suggested the reverse gear either didn't have the seal replaced or it was done improperly.
After dealing with the shop I made the mistake to use I thought this was the deal.
Thanks for the advice. Your sharing was good news to me.

 

[woodwiz]

Don’t know if this is somewhat relevant,but I have a fairly new NSW that has a O-ring on it and I have trans fluid leaking somewhere above the attached pan. I think it might be coming from either the band adjusting bolt and or the most forward trans cooler line to the radiator.
Also there’s a 3-pin plug for the NSW that fits on and kind of over said switch that when I pull that off there is trans fluid present. Ideas or solutions ?
Sorry didn’t mean to hijack your original post!

 

[Russ Hood]

Don’t know if this is somewhat relevant,but I have a fairly new NSW that has a O-ring on it and I have trans fluid leaking somewhere above the attached pan. I think it might be coming from either the band adjusting bolt and or the most forward trans cooler line to the radiator.
Also there’s a 3-pin plug for the NSW that fits on and kind of over said switch that when I pull that off there is trans fluid present. Ideas or solutions ?
Sorry didn’t mean to hijack your original post!

Mine was leaking here