NV3550 leak

[NealtheDestroyr]

So its cold today and i get home and notice i have 90w dripping from the top of my tranny. Any ideas or experience? not a lot but enough to make me worried....
2001 tj 5 spd 4.0L oil was replaced around 3-4 months ago....

[Sharpe]

Dont worry about it until it stops leaking :flipoff2:

[AggieTJ2007]

where on top, it is pretty much sealed except for a small vent on top, oh and its not 90wt it is a special snycromesch fluid 90wt will screw up your syncros

[NealtheDestroyr]

where on top, it is pretty much sealed except for a small vent on top, oh and its not 90wt it is a special snycromesch fluid 90wt will screw up your syncros

It smells like 90w and the only reason i know how pure 90w smells like is that i took a bath in it while i was working on my stryker in iraq... it sucked ass and ill never forget what that smelled like....
anyways this smelled and looks like 90w so im gonna go ahead and drain it and refill it with the right stuff. that way I know its right and im not trusting an autoshop...
thanks for the help

[DRAGOONRANCH]

This is what Amsoil gives for fluid in an '01 Wrangler.

Manual Transmission,NV3550......GLS [1]
Synthetic Synchromesh Transmission Fluid (5W-30) (MTFQT) (https://www.amsoil.com/catalog.aspx?code=MTFQT-EA)
Manual Transmission,EX NV3550......GL-3
Synthetic Manual Transmission and Transaxle Gear Lube (75W-90) API GL-4 (MTGQT) (https://www.amsoil.com/catalog.aspx?code=MTGQT-EA)

I wouldn't put 'good' oil in it until I figured out what the leak was from though.

[DRAGOONRANCH]

Looking at it again, they show a 4.9qt. capacity for the NV3550 and 7qt. for the AX-5, but don't show what fluid to use for the AX-5. I be that they meant that the AX-5 is the one that is supposed to use the 75w-90.

[bcolman]

did you get some water in it when you went to spring creek?

[NealtheDestroyr]

did you get some water in it when you went to spring creek?

dont think so as i never went through any deep puddles...

[breckboarder55]

Well when you drain the fluid you will know.
That's how I killed my transmission at Spring Creek. (see avatar)

[robertf03]

gl5 makes ax transmissions shift like crap. gl 4 only, or synchromesh. First hand experience, not repeating pirate. It does take 90w.

[AggieTJ2007]

gl5 makes ax transmissions shift like crap. gl 4 only, or synchromesh. First hand experience, not repeating pirate. It does take 90w.

it is not an ax transmission, and I am not repeating pirate I have first hand experience I happen to own a vehicle w/ a NV3550 in and have changed the fluid in it a few times

Ed is right it takes a light weight syncromesh fluid. There is a good chance that someone put the wrong fluid in it. Please do not put 90w in it if it is truely a nv3550 as it will destroy your syncros and bearings very quickly.

Or look at your owners manual and look at what the recomended fluid is for the trans.

[NealtheDestroyr]

it is not an ax transmission, and I am not repeating pirate I have first hand experience I happen to own a vehicle w/ a NV3550 in and have changed the fluid in it a few times

Ed is right it takes a light weight syncromesh fluid. There is a good chance that someone put the wrong fluid in it. Please do not put 90w in it if it is truely a nv3550 as it will destroy your syncros and bearings very quickly.

Or look at your owners manual and look at what the recomended fluid is for the trans.

this is the last time i trust someone to put the correct fluid in my jeep...

[Seth]

I had a similar trans in my 98 gmc with a 6 cylinder. I never was ableto find any real good info on it, mostly crap off mini truck boards, but the leak out the top is fairly common, maybe around the shifter somewhere.

That being said, I replaced mine with a muncie from and 89 with a v6, Ed, do you have the correct fluid for that trans? I dont have the 1989 owners manual and could not find the site when i downloaded my 98 one in pdf form. wish I could.

[DRAGOONRANCH]

If it's a '1989 CHEVROLET TRUCKS C1500 2WD PICKUP 4.3L 6-cyl Engine Code'

https://www.amsoil.com/catalog.aspx?code=MTFQT-EA

Yep, I can get ahold of it.