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Old 04-01-2016, 03:45 PM
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Tranny oil change question quick please

So I am in the middle of changing out my 5 speed manual transmission oil, I have the oil draining as we speak, just want to verify the fill whole is on the drivers side? I started to take the bolt out but it seemed mighty long, just want to make sure! Of course the crappy Haynes manual doesn't show me much of anything

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Old 04-01-2016, 04:06 PM
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Anyone?

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Old 04-01-2016, 04:54 PM   #3
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check your in box.
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Old 04-04-2016, 03:07 PM
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Can anyone verify this!

So when I was changing out my transmission oil, I went to remove what I thought to be the fill whole, 1/2" socket, I started to pull the bolt, it seemed longer then usual, so I stopped what I was doing and did some research, does anyone know what will happen if this is pulled out all the way, just curious
I ended up finding the hex 17 MM fill, it sits about 3" below this bolt, I think I have a ax15, my build sheet just says 5 speed HD Tranny

Anyone know what this does?
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Old 04-04-2016, 04:51 PM   #5
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Info like year and engine and we will know which tranny you have

Neither fill or drain on ax_15 is a bolt
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Old 04-04-2016, 05:11 PM   #6
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^ that and also i would advise finding and removing the fill plug before pulling the drain plug..

hindsight is always 20/20 though. best of luck
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Old 04-04-2016, 06:01 PM   #7
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Sounds like the ax5 do not remove bolt on drivers side not the fill plug on passenger side
The put on a factory label telling you not to remove that bolt
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Old 04-04-2016, 06:11 PM   #8
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Old 04-05-2016, 06:34 AM
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2000 Wrangler Sport 4.0 inline, both bolts required a 17 MM hex, the fill was located on the drivers side, nothing on the passenger side, based on these pictures nothing match's
what I have.
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Old 04-05-2016, 07:31 AM   #10
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NV3550 replaced the AX-15 in 2000 on the 4.0

Which is why you need to share those little secrets like engine and year

See this link

http://www.4x4xplor.com/trannyservice.html
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Old 04-05-2016, 01:57 PM
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Thanks Digger84,

Napa recommended gear 80-90 W oil for this, any other recommendations, seems to grind a little into 2nd gear now
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Old 04-05-2016, 05:12 PM   #12
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Do not use 80-90 in the nv3550, this transmission requires a friction modifier in the fluid. I had the same issue when i got mine and serviced it with the factory stuff two times and have not had an issue since. I think other guys on here have had good luck with syncromesh, I'm sure someone else will chime in.
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Old 04-05-2016, 05:38 PM   #13
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Quote:
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Thanks Digger84,

Napa recommended gear 80-90 W oil for this, any other recommendations, seems to grind a little into 2nd gear now
You need to drain that out quickly!! Napa should of recommended a Syncromesh fluid. They carry Royal Purple Syncromax. But whoever recommended strait gear oil is very wrong and can damage your transmission.
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Old 04-05-2016, 06:07 PM
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Hey guys, thanks for the good info, saved my ass again!
Heading there now to get the right stuff

Should I let it drain for a day or two, to get all of the old oil out?
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Old 04-05-2016, 06:16 PM   #15
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Hey guys, thanks for the good info, saved my ass again!
Heading there now to get the right stuff

Should I let it drain for a day or two, to get all of the old oil out?
If I were you I would get Pennzoil Syncromesh because it's cheaper. Drain the gear oil while it's still warm, just give it 30 minutes. Pump in the syncromesh ( 2 quarts ) drive it for 15 minutes drain it and either add 2 more quarts of the Pennzoil fluid or what I use is Royal purples Syncromax.

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