Leak on a four speed

[71RRHI]

This is my first four speed. There is a leak from this plug under the neutral switch. What is this plug for? Can I remove it and replace the gasket?

 

[Eric Pearson]

Yes you can replace the gaskets contact Brewers transmission for the parts, That part is for the reverse gear lever it has a spring an a ball bearing in side so be mindful when removing it.

 

[pnora]

This is my first four speed. There is a leak from this plug under the neutral switch. What is this plug for? Can I remove it and replace the gasket?
View attachment 1583563

That is not a neutral switch. It is your back up light switch. Make sure its not leaking from that. I have seen way more switch leaks than the reverse detent leaks.

 

[1 Wild R/T]

Usually it's the O ring on the reverse shift shaft.... You know, the very first part installed in the case before anything else....

 

[71RRHI]

That is not a neutral switch. It is your back up light switch. Make sure its not leaking from that. I have seen way more switch leaks than the reverse detent leaks.

Looking more closely it does appear to be leaking from the back up switch. Not from the threads but the switch. Looks like a newer switch. Possible cheap china repop. Any recommendations on where to get a new switch. I know Eric Pearson recommend Brewers.

 

[Orig69]

Looking more closely it does appear to be leaking from the back up switch. Not from the threads but the switch. Looks like a newer switch. Possible cheap china repop. Any recommendations on where to get a new switch. I know Eric Pearson recommend Brewers.

View attachment 1583656

Yes Brewer's has both items, the backup light switch and the backup light switch gasket.
Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists