LT77 rubber plug help? - Defender Source
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  #1  
Old August 14th, 2016, 03:49 PM
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LT77 rubber plug help?

Was changing some fluids on my truck and noticed some red transmission fluid coming out of an area underneath the cubby/middle seat. It appears to be coming from this deteriorated rubber plug next to what I believe is the reverse light switch. Tried searching couldn't turn anything up. Can anyone tell me the part number of what is supposed to be here? I doubt what is there is original.

Plug installed



Plug removed (it just pulled out)



Said plug


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  #2  
Old August 14th, 2016, 04:05 PM
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Parts catalogue says part number 608246. Same as transfer case fill and diff fill and drain.
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  #3  
Old August 14th, 2016, 04:23 PM
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Quote:
Originally Posted by Red90 View Post
Parts catalogue says part number 608246. Same as transfer case fill and diff fill and drain.
I saw that in some pictures but my hole isn't threaded, and it doesn't appear like it ever was.
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  #4  
Old August 14th, 2016, 04:29 PM
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Yah. It looks like a frost plug type thing but it is not on the parts catalogue.
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  #5  
Old August 14th, 2016, 04:35 PM
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Quote:
Originally Posted by Red90 View Post
Yah. It looks like a frost plug type thing but it is not on the parts catalogue.
Exactly what I was thinking. Maybe I can just caliper it and get a freeze plug. I figured this would be a factory thing.

This is supposedly an LT77 (although my reverse sensor looks different). It kind of looks like a freeze plug in this picture. Also the upper piece appears to be attached with silicone while mine appears to be a gasket. Not sure of the significance.

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Old August 14th, 2016, 04:39 PM
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I would send a note to Ashcroft. They will now what to use and they are good at getting back.
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Old August 15th, 2016, 01:32 PM
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I would send a note to Ashcroft. They will now what to use and they are good at getting back.
Ashcroft knew the part and is sending me one. Nice fellow.

With my new found clunking I am sure I will be calling him sooner or later for a tranny (output shaft) and transfer case (input shaft).
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  #8  
Old September 5th, 2016, 03:19 PM
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Quote:
Originally Posted by Red90 View Post
Parts catalogue says part number 608246. Same as transfer case fill and diff fill and drain.
I was looking at something else today...and noticed that in the notes on the page, it says the part number...

597586
597586 | Cup Plug - Paddock Spares
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  #9  
Old September 5th, 2016, 03:55 PM
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Quote:
Originally Posted by Red90 View Post
I was looking at something else today...and noticed that in the notes on the page, it says the part number...

597586
597586 | Cup Plug - Paddock Spares
Good find! That is exactly what Ashcroft sent me. Didn't know it had a part number.
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  #10  
Old September 5th, 2016, 04:07 PM
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And looking further, it is a 1" frost plug used in the engines as well.
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  #11  
Old September 5th, 2016, 07:24 PM
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Quote:
Originally Posted by Red90 View Post
Yah. It looks like a frost plug type thing but it is not on the parts catalogue.
Are you using microcat or a paper/fiche catalog? In microcat if you look up the LT77 shifter and then press DEL for the "superwindow" it shows up but just as a non-indexed part. It's in parenthesis near the end of the list.
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  #12  
Old September 5th, 2016, 07:35 PM
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Paper. There is a note below the list that says "the screw in plug 608246 is also replaced by cup plug 597586". I may have been looking online at the time and the note is not in the online catalog.

I must assume early trucks were threaded and had a fill plug and it was deleted early on. Too bad, really, as a big fill plug would be nice.
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  #13  
Old September 5th, 2016, 08:07 PM
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I'd probably just stick in one of these
https://www.google.com/url?sa=t&sour...UIGH4pq_T3Pyfg
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