More help/advice on JD 85-100HP range - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 21 (permalink) Old 07-24-2009, 04:55 PM Thread Starter
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More help/advice on JD 85-100HP range

Other than some attachments for my other tractors, I'd like to buy an older 2955, 6400, 4x4. I'd like to pull a 10' folding rotary cutter with it.

Most I've looked at are in the '88-'95 year model range with 4500-6,000 hours. A Deere with this many hours with proper maintenance doesn't scare me.

Are these machines equipped with hydraulic clutches or are they "dry"? Am I right to assume the "power quad" is a hydraulic shuttle?

I notice only some of the 2955's have "high/low". The one I'm interested in has it. Is this just an extra range selection? Is it a highly sought option or really only useful for slow speed spraying, etc.?

Is there anything inherintly wrong wth a 2955? I notice they're German made. Is a 6400 a big jump-up? I found a good deal on a couple of 6400's, too. One is a synchro plus, one is power quad. Is the synchro plus dry or hydraulic?

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post #2 of 21 (permalink) Old 07-24-2009, 10:11 PM
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they didnt go to the hydro clutch till the powershift trannys. i would pick up that 6400 if i where you, and go with the syncro shuttle, the power quad hangs up in gears and gets agravating.

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post #3 of 21 (permalink) Old 07-24-2009, 11:32 PM Thread Starter
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So the sync shuttle isn't shift on the fly, but it's a hydraulic shuttle, not a dry clutch?

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post #4 of 21 (permalink) Old 07-25-2009, 12:31 AM Thread Starter
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post #5 of 21 (permalink) Old 07-25-2009, 01:28 AM
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its a dry clutch with a hydrolic actuator, its not a true auto clutch, you can step on the pedal and feel it... the F-R shuttle is electronic over hydro and controls the clutch and fwd-rev box. the a-b-c-d range and 1-4 shift is all syncronized and you can shift on the fly by either clutch shifting or with throttle control and shifting like a big truck. either way it is seamless and bullit proof. if it was me i would pay extra for a 6400.

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post #6 of 21 (permalink) Old 07-25-2009, 02:22 AM
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The power quad is a 16spd partial power shift trans, and the only option in my book. 4 ps gears in 4 ranges. Have run the PQ in 2 different tractors. A 6300 and a 7810. The 63 we have, has a reverser on it. No problems what so ever. You can change ranges on the fly, using the clutch. It isn't like the old tractors where you had to stop to change ranges without grinding.

The hi/low on the 2955 is a hyd shifted gear change involving a planetary gear set. The hi/low gives you 2 "powershift" gears, in every gear. Same as the 1-2 and 3-4 shifts on a older Quad-Range transmission. Pretty simple setup. IIRC, some of those smaller 55 series tractors had a hyd reverser where the hi/low lever is.

My money would go for the 6400. The wiring on them is still pretty simple to troubleshoot when the mice have at it.

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post #7 of 21 (permalink) Old 07-25-2009, 02:28 AM
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i was thinkin of the old style power quad that would hang up in the 1-4 range if you shifted to fast, you would have to tear down the hole shift linkage to get it freed up

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post #8 of 21 (permalink) Old 07-25-2009, 02:56 AM
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There is a lot less maintenance with an older tractor, The 6400 is a 4cly vs 6 in the 2955 Also the 6400 has a lot more electronics that tend to go bad.
I have a 6420 4x4 that has been a P.O.S! I thought that the older Deere's had hydraulic clutches, old fords have dry ones....
The 2955 will be a lot easier to work on than the 6400.

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post #9 of 21 (permalink) Old 07-25-2009, 04:28 AM
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Duke I have a 2955, and it is the only Deere I have ever owned that I didn't like. The dry clutch is notorious for needing replacement after 1500-3000 hrs of loader use, and the transmission is horrible to use for loader work, and the loader tends to be very slow and under powered. But if you're not going to use it for much loader work, they are a good utility tractor, the engine is a great engine, power is there all through the rpm range, and they start great in cold weather. A 6400 is known to be very cold blooded, but that may not be an issue for you.
My advice if you haven't done it already is go operate one of each if you can find some locally and see what you think.

If you would like me to go into further detail on issues I have had with the 2955, PM me and I'll give you my phone number so I can go into more detail.

Good luck in the Deere hunt!

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post #10 of 21 (permalink) Old 07-25-2009, 12:03 PM Thread Starter
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All I want to do is pull a 12' flex wing mower with it. Im close to landing a mowing job for about 40 acres of various horse farm plots nearby. The current owner of the property is no longer interested in mowing. They have an old open station Ford with a 8' rotary mower that I could use for "free", but it's awful dusty, hot, noisy, you know the deal. I actually felt unsafe.

I thought I'd make an investment in my business with the cab tractor and increase my comfort & safety. I'm really open to brands, but if it's going to be older, I like Deere the best for parts availability. Let's face it, there's so many out there.

If I buy, I will use their mower until I can afford a flexwing.

So anyway, the chore will be mowing.

The thing I liked about the 2955 for mowing is that the operator seat is set back further than on the 6400 which would be a better position for mowing. I like the 6400 more for comfort and visibility and I really like the cab corner post exhaust. Asthetically, I love the 2955. It's such a great retro-looking rig and I admit I'm partial to the 6 banger out front.
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