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Old 12-02-2013, 02:11 AM   #1
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How many miles on your tranny.

Just wondering what people are getting for milage out of there transmissions....

I have an ax-15 and the syncros are going. So I'm replacing it with a nv3550 for $300. I hope it's in good shape. It has 180k on it but the seller said it was in great shape...

Feel free to post your milage/stats and weather you have had any issues or had to replace it.

1997 TJ sport 5-speed
153,000 miles
Ax-15 ( grinds in 3rd, unless double clutched)

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Old 12-03-2013, 12:40 AM   #2
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bump...

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Old 12-03-2013, 12:46 AM   #3
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My nv3550 has 189,3xx on it and runs fine. Noisy, but it's been like that since I bought it new.
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Old 12-03-2013, 12:53 AM   #4
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42rle at 160k (only 5k of those miles from me)
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Old 12-03-2013, 01:16 AM   #5
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Quote:
Originally Posted by BLK00TJ View Post
My nv3550 has 189,3xx on it and runs fine. Noisy, but it's been like that since I bought it new.
Have you tried changing the fluid to REDLINE MT-90. I heard it works wonders... I'm glad you have 180k+ with no issues, makes me feel better about getting a used tranny with 180k
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Old 12-03-2013, 05:44 AM   #6
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184K. Fluid changed at 100K & getting ready to change again. Noisy as hell in, but reliable so far.
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Old 12-03-2013, 07:26 AM   #7
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Originally Posted by Powder Monkey View Post
184K. Fluid changed at 100K & getting ready to change again. Noisy as hell in, but reliable so far.
Ax15 or nv3550?
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Old 12-03-2013, 07:43 AM   #8
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3550
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Old 12-03-2013, 08:19 AM   #9
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Mine is original. 353,000 miles on it. Will grind into second very rarely.
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Old 12-03-2013, 08:40 AM   #10
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Quote:
Originally Posted by NH-JK View Post
Have you tried changing the fluid to REDLINE MT-90. I heard it works wonders... I'm glad you have 180k+ with no issues, makes me feel better about getting a used tranny with 180k
I'm ashamed to say it has never been changed. I've had some Amsoil to put in for almost a year and never got around to doing it. I'm hoping to get it done this weekend.
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Old 12-03-2013, 08:51 AM   #11
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42RLE 150K-It will surge going into and out of 3rd i think it is. It kicks in and out of OD just fine tho. Im happy with it for now.
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Old 12-03-2013, 12:20 PM   #12
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1999 ax-15 with 199,583 and the original clutch that I learned how to drive a manual on.


And I beat the snot out of it. It is 90% trail rig only.



Issues I have though are it has always given me a grind when I go into reverse but if I slap the stick left then right it slides right it. And I'm pretty sure my flywheel is a little warped.

I'm locked on 35s with 4.88s and
I have been know to dump the clutch in third gear when I'm in 4lo to get over and obstacle and it still has held together
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Old 12-03-2013, 12:24 PM   #13
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Grinding in reverse is normal.
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Old 12-03-2013, 06:27 PM   #14
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Grinding in reverse is normal.
I agree, there is no synchro in reverse.
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Old 12-03-2013, 08:10 PM   #15
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'99 4.0 with 154K. sometimes it doesn't go into first so I quickly hit the clutch and then go 2-1 and it's good. First to second can grind or be smooth. I've only put 3K on it and did try the kerosene cleaning then added MT-90. synchros are failing but I can live with it.
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Old 12-03-2013, 08:31 PM   #16
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102k on the Jeep.
42RLE caught fire at ~15k, rebuild at 52k.
been almost 50k since the rebuild, so it's probably due for another overhaul soon. was thinking of sticking an NV3550 in there...
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Old 12-04-2013, 11:30 AM   #17
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97TJ/5 speed with 265,000, only time I touched the trans was when I replaced the clutch
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Old 12-04-2013, 11:50 PM   #18
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97TJ/5 speed with 265,000, only time I touched the trans was when I replaced the clutch
That's crazy milage
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Old 12-06-2013, 11:16 PM   #19
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2003 Sport/NV3550 @ 250,000+

No issues other than general clanky-ness that has always been there. The throw-out bearing rattles when it is idling out of gear. I pretty much has always done that, as did my NV1500 on my 2003 2.4L SE.

These are decent transmissions.
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Old 12-06-2013, 11:37 PM   #20
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Quote:
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That's crazy milage
Add 100,000k lol

First clutch change was at 333,000 miles. I'm not sure whey these things last so long.
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Old 12-06-2013, 11:42 PM   #21
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I just picked up a nv3550 transmission tonight from a 00 with 180k miles... Or so I'm told. I'm hoping it's a smooth swap for my ax15.
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Old 12-07-2013, 12:27 AM   #22
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I remember back when I was less mechanically inclined (not long ago), but still well informed thanks to this forum, taking my TJ into a mechanic because my rear end was grinding. The first two said it was my tranny and offered to replace it with a reman for $700+ even though I told them to check the rear diff. I was like, "What? No F'ing way is this guy going to replace my transmission with an AX15 (still a good tranny BTW). The NV3550 is a workhorse." Both shops swore up and down my transmission was the problem. I went to the third mechanic and told him what the previous shops said. He said, "NV3550? They all make that noise." He regeared my D44 and is the only one besides me that is allowed to touch my rig.

These aren't transmission parts and was the source of my problem. I was going to change my tranny fluid tomorrow, but schedule got in the way so it looks like I'll be changing next weekend for the first time.
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Old 12-07-2013, 10:22 AM   #23
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2000 NV3550 with 126k. Only issue was I had a roller pin loosen on the shift rail and jammed up the shifter forks. But that was just the roller pin doing its job.
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Old 12-08-2013, 10:11 PM   #24
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I had to replace my gear shift knob, does that count?

My original was missing the pattern insert.
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Old 12-09-2013, 12:18 AM   #25
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What a pain that is to do with out messing up the knob. The rubber gets eaten up easy
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Old 12-10-2013, 08:17 AM   #26
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Yep, and the wife insisted the knob show the gear pattern.

I tried to tell her to keep her eyes on the road and do like in "Star Wars Feel the Force"

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