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 > Any Allison transmission general info ?

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LandYacht35diesel

Florida STAYcation

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Posted: 02/20/22 12:18pm Link  |  Quote  |  Print  |  Notify Moderator

.. absolutely no problems here .. and I sure don’t want any. Any tips and preventive maintenance issues ?

MountainAir05

New Mexico

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Posted: 02/20/22 01:23pm Link  |  Quote  |  Print  |  Notify Moderator

Filters and fluid change when due.

wolfe10

Texas

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Posted: 02/20/22 02:00pm Link  |  Quote  |  Print  |  Notify Moderator

For advice, PLEASE tell us what Allison transmission you have or better yet, fill out your signature so we know what you have (year, coach, engine, trans info really help with accurate answers).


Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

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LandYacht35diesel

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Posted: 02/20/22 02:18pm Link  |  Quote  |  Print  |  Notify Moderator

97 airstream land yacht .. 5.9 Cummins 12 valve

wolfe10

Texas

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Posted: 02/20/22 02:51pm Link  |  Quote  |  Print  |  Notify Moderator

Allison 6 speed 3000 series electronic transmission or Mechanical 4 speed.

Both were used with the Cummins B engine, as were some 5 speed 1000 and 2000 series.

LandYacht35diesel

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Posted: 02/20/22 02:59pm Link  |  Quote  |  Print  |  Notify Moderator

It’s a 6 speed .. shifts great … it’s no race transmission though !! .. is 5th and 6th overdrive ? I assume there is no lockup converter … yes ?

wolfe10

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Posted: 02/20/22 03:01pm Link  |  Quote  |  Print  |  Notify Moderator

If 6 speed, 3000 series transmission (like MD3060) 4th is direct, 5th and 6th are OD's. There will be a plate on the driver's side of the transmission with model and serial number-- good to have when ordering parts/filters as there are both shallow and deep pans.

Torque converter is locked in "high 2nd" and all higher gears. The lock up in second is at higher engine speed and feels like a mini-shift.

Servicing is pretty straightforward. Get the filter kit from an Allison dealer. It has filters, gaskets and instructions. Not a difficult job.

Then get a 5 gallon pail from the Allison dealer of Transynd 668 (the newest fluid that replaces earlier fluids).

* This post was edited 02/20/22 03:12pm by wolfe10 *

gbopp

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Posted: 02/20/22 04:29pm Link  |  Quote  |  Print  |  Notify Moderator

If you don't know when the transmission was last serviced, do it now.
Then you will have a base line for future maintenance.
It's cheap insurance.

Ava

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Posted: 02/21/22 10:08am Link  |  Quote  |  Print  |  Notify Moderator

My 1994 six speed Allison still runs without any issues. When I first got this rig, I had the trans fluid tested and then replaced the Transynd and filters. The test gives you a good indication of the condition of the trans. I have changed it once more since then.

Blaster Man

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Posted: 02/21/22 01:02pm Link  |  Quote  |  Print  |  Notify Moderator

Get the fluid tested annually....JG Lubrication. I've been using them for 11 years, get a detailed report back within a week:

http://www.jglubricantservices.com/


2014 American Eagle

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