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Old 02-23-2010, 09:25 PM
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trans issues?

New to the Jeep scene. recently picked up a 95 yj, 6cyl, 5spd, 154k miles. I think it has a 3" lift (running 33's). It had been making regular rapping noises in reverse and kind of rattled whenever I shifted, but chalked it up to misc. jeep noises. Drove it to and from ATL this weekend and things have gotten worse. With the engine running and clutch in, it's quiet. If I let out the clutch with the engine in neutral it makes a loud rapid tat-tat-tat... noise. If I let out the clutch with the engine running and in gear (1st or reverse) rpms drop, like it is going to stall (similar to pulling a bush or something), then a loud clunk and lurch. Clunks and lurches get smaller as I speed up a bit. Don't think it is a diff, because I can push the jeep forwards and backwards with the engine off. Any help is appreciated. thanks, greg
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Old 02-24-2010, 12:06 PM   #2
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heres the first thing id do. get a clean drain pan and drain the trans and look for metal shavings or chunks both in the drain pan and the transmission itself everything settles to the bottom anyway. if theres noting there do the same thing with the transfer case, one of the 2 will have metal shavings/chunks in it. if i knew i could upload the AX-15 manual to this site i would. and expect a magnet to get all the metal as there is brass in there too.

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Old 02-24-2010, 01:29 PM   #3
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if your not mechanically inclined or don't have time. Most tranny shops will check it out for under 60-70 bucks and they can tell you whats messed up and you can go from there.
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Old 02-24-2010, 08:11 PM
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yeah, maybe I should have mentioned that in the original post. The previous week I swapped trany fluid. It was full before the swap. Didn't see any chunks, but remember wishing all those sparkley things were real gold. So many flakes I almost went in to get some milk and a spoon. Replaced with NAPA 80-w90 gear oil, supposed to be GL-4, GL-5, and I think GL-3 compatible. I knew there was some kind of drivetrain issue with it when I got it on the cheap, just didn't know what it was. Probably should have mentioned that also.

If the trans is in neutral and the vehicle is stationary, is it correct that nothing should be moving in the transfer case?
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Old 02-25-2010, 02:14 AM   #5
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The only thing that should be moving is the input shaft on the transmission. In order for anything to move in the transfer case, the output shaft would have to be spinning, i.e. the transmission in gear. Sounds to me like you're either looking at a rebuild or a swap. A rebuild kit will run you about $200 including new bearings, gaskets, and synchronizer rings. I've rebuilt my AX-5 (4cyl model) and it was a pain in the butt, you'll need a shop press to get the gears on and off. Personally I'd recommend a new transmission, or a used one. you can pick up an ax-15 from ebay for a few hundred bucks sometimes, or autozone will probably sell you one for around a $1000 with a core.
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