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Eaton AutoShift 10 speed transmission and associated parts

Posted: Sat Oct 25, 2008 9:03 am
by beltguy
I have a complete AutoShift 10 speed truck transmission system. It came out of an Eagle with a Series 60 (not mine) and is in good condition.

The AutoShift can be used with mechanical engines (becomes an AutoSelect). If used that way, it does not require fabrication of shifting linkage (does require a wiring harness, but that is not a huge deal).

Having done this conversion, I would be glad to walk a person through the conversion.

If you want to use the full capability of the transmission, you will need an engine ECM that has J1939 communication (some DDEC III and all DDEC IV and V)

Asking $4000.

Jim
jim at rvsafetysystems dot com
three zero three 478 3501

Re: Eaton AutoShift 10 speed transmission and associated parts

Posted: Mon Oct 27, 2008 8:18 am
by Songman
Jim, will you explain how this works for someone who might not know? I know a little from talking to you and Don about them, but a little explanation might help someone be interested in buying it.

Re: Eaton AutoShift 10 speed transmission and associated parts

Posted: Tue Oct 28, 2008 9:04 am
by beltguy
Dale, I will try to give a brief a brief explanation to a somewhat complex story (not easy for me ;) :D ).

The Eaton AutoShift was developed for the heavy truck market in the late 90's. It took the typical truck transmission and automated the shifting process. The driver had to use the clutch to start and stop, but after that, he just had to sit back and steer. A very large number of trucks use that type transmission today, because of the available work force who are not able to master the art of shifting.

What Eaton did was to replace the shifting tower with one that had two servos. Those servos are controlled by two computers which, in turn, talk to the engine computer (via J1939 protocol). Between the two they decide when to make a shift (up or down). It is all very smooth and the driver does not have to worry about being in the correct gear. The driver can manually select a gear with shift buttons if the shift is within the acceptable RPM range.

If the AutoShift does not see an engine computer (mechanical engine for example) it becomes an AutoSelect and the driver makes the shifts by backing off the throttle to break the torque, pushing the button to select the gear desired and then, with the help of a gauge, changes the engine speed up or down. When the engine speed is correct, the transmission will slide into gear.

Both of these options are based on what many truck drivers do with normal truck transmission. They let the clutch out and then row through the gears by changing the rpm with the foot feed without the clutch.

For bus folks, this kind of transmission allows the owner to have a true mechanical transmission with great gear options for any condition, without having to deal with sloppy mechanical linkage running from front to back. It also gives them a good overdrive ratio without having to buy an Allison World transmission -- especially important when making a engine conversion from two to four stroke.

Jim

Re: Eaton AutoShift 10 speed transmission and associated parts

Posted: Sun Nov 02, 2008 5:47 pm
by SIVRTNGE2
Hey Y"all, :D
Is this the one with the clutch???
--
BILL

Re: Eaton AutoShift 10 speed transmission and associated parts

Posted: Wed Nov 05, 2008 9:50 am
by beltguy
Hi Bill. Yes, this is a generation I unit. I have all of the clutch parts for an Eagle bus installation.

The previous owner used an air over hydraulic system like I did. We used an air brake treadle valve and an air brake chamber to push on a hydraulic master cylinder. I have all of those parts. That makes installing the clutch in a non-clutch coach easier. Having said that, I really had to work, on what most folks would call a kludged up system, to get it to work (the air system does not give good feedback).

Jim

Re: Eaton AutoShift 10 speed transmission and associated parts

Posted: Fri Nov 21, 2008 8:24 pm
by beltguy
Would like to get this unit down the road. Any takers for $3,000?

Jim

Re: Eaton AutoShift 10 speed transmission and associated parts

Posted: Sat Jul 11, 2009 11:28 am
by beltguy
This transmission conversion needs to find a home.

Reasonable offer?

Jim